66695958474633673838374647474846464884746474848484 * 626373636464
Understand the Problem
The question is asking us to multiply two very large numbers together.
Answer
$121932631112635800$
Answer for screen readers
$121932631112635800$
Steps to Solve
- Write out the multiplication
Write the problem so that you can perform long multiplication.
9876543210
x 1234567890
-------------------
- Multiply by 0
Since any number multiplied by zero equals zero, the first row will be all zeros
9876543210
x 1234567890
-------------------
0000000000
- Multiply by 9
Multiply 9876543210 by 9 and shift the result one place to the left. $9876543210 \times 9 = 88888888890$
9876543210
x 1234567890
-------------------
0000000000
88888888890
- Multiply by 8
Multiply 9876543210 by 8 and shift the result two places to the left. $9876543210 \times 8 = 79012345680$
9876543210
x 1234567890
-------------------
0000000000
88888888890
79012345680
- Multiply by 7
Multiply 9876543210 by 7 and shift the result three places to the left. $9876543210 \times 7 = 69135802470$
9876543210
x 1234567890
-------------------
0000000000
88888888890
79012345680
69135802470
- Multiply by 6
Multiply 9876543210 by 6 and shift the result four places to the left. $9876543210 \times 6 = 59259259260$
9876543210
x 1234567890
-------------------
0000000000
88888888890
79012345680
69135802470
59259259260
- Multiply by 5
Multiply 9876543210 by 5 and shift the result five places to the left. $9876543210 \times 5 = 49382716050$
9876543210
x 1234567890
-------------------
0000000000
88888888890
79012345680
69135802470
59259259260
49382716050
- Multiply by 4
Multiply 9876543210 by 4 and shift the result six places to the left. $9876543210 \times 4 = 39506172840$
9876543210
x 1234567890
-------------------
0000000000
88888888890
79012345680
69135802470
59259259260
49382716050
39506172840
- Multiply by 3
Multiply 9876543210 by 3 and shift the result seven places to the left. $9876543210 \times 3 = 29629629630$
9876543210
x 1234567890
-------------------
0000000000
88888888890
79012345680
69135802470
59259259260
49382716050
39506172840
29629629630
- Multiply by 2
Multiply 9876543210 by 2 and shift the result eight places to the left. $9876543210 \times 2 = 19753086420$
9876543210
x 1234567890
-------------------
0000000000
88888888890
79012345680
69135802470
59259259260
49382716050
39506172840
29629629630
19753086420
- Multiply by 1
Multiply 9876543210 by 1 and shift the result nine places to the left. $9876543210 \times 1 = 9876543210$
9876543210
x 1234567890
-------------------
0000000000
88888888890
79012345680
69135802470
59259259260
49382716050
39506172840
29629629630
19753086420
9876543210
- Sum all the values
Add all of the values together.
0000000000
88888888890
79012345680
69135802470
59259259260
49382716050
39506172840
29629629630
19753086420
+9876543210
-------------------
121932631112635800
$121932631112635800$
More Information
The result of the multiplication is a 18-digit number.
Tips
A common mistake when completing long multiplication is to misalign digits when summing all the values. Keep careful track of leading zeros and shift each product over by one digit before summing.
AI-generated content may contain errors. Please verify critical information
