87721612 divided by 640 
We want to divide 87721612 by 640.

Let's proceed to step 1:
640 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 640

Moving on to step 2:
The number 640 fits into 87 0 times, leaving a remainder of 87.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 87, we get 87.
Grab the next digit (7) from the dividend, add it to 87, then carry on: 877 / 640

Moving on to step 3:
877 divided by 640 is 1 with a remainder of 237.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 640 from 877 leaves us with 237.
Bring next digit (2) of the dividend behind the 237 and repeat the process: 2372 / 640

On to step 4:
If we divide 2372 by 640, we get 3 and a remainder of 452.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Deduct 1920 from 2372 and we're left with 452.
Fetch the next digit (1) from the dividend, attach it to 452 and continue: 4521 / 640

Going ahead to step 5:
640 can be fit into 4521 7 times, resulting in a remainder of 41.
Write down 7 as next digit of the result. 
Result so far: 137.0
Subtracting 4480 from 4521 leaves us with 41.
Include the next digit (6) from the dividend after 41, then repeat: 416 / 640

Step 6:
640 goes into 416 0 times with a remainder of 416.
Use 0 as the next digit of our solution. 
Result so far: 1370.0
Subtracting 0 from 416 leaves us with 416.
Append the next digit (1) from the dividend to 416 and continue with: 4161 / 640

Moving on to step 7:
4161 divided by 640 is 6 with a remainder of 321.
Write down 6 as next digit of the result. 
Result so far: 13706.0
If we take 3840 away from 4161, we end up with 321.
Bring next digit (2) of the dividend behind the 321 and repeat the process: 3212 / 640

Step 8:
When dividing 3212 by 640, we get 5 with a remainder of 12.
Put 5 as the next digit of the answer. 
Result so far: 137065.0
If we take 3200 away from 3212, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 9:
640 can be fit into 120 0 times, resulting in a remainder of 120.
Record the quotient 0 as the next digit in the result. 
Result so far: 137065.0
Subtract 0 from 120 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 10:
If we divide 1200 by 640, we get 1 and a remainder of 560.
Record the quotient 1 as the next digit in the result. 
Result so far: 137065.01
The remainder is 560 after subtracting 640 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Advancing to step 11:
If we divide 5600 by 640, we get 8 and a remainder of 480.
The number 8 becomes the next digit in our result. 
Result so far: 137065.018
If we take 5120 away from 5600, we end up with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

On to step 12:
4800 divided by 640 is 7 with a remainder of 320.
The number 7 becomes the next digit in our result. 
Result so far: 137065.0187
If we take 4480 away from 4800, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 13:
640 can be fit into 3200 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 137065.01875
The remainder is 0 after subtracting 3200 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 14:
0 divided by 640 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 137065.01875
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 15:
When dividing 0 by 640, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 137065.01875
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 137065.01875, and the remainder is 0.0.