We're dividing 73964532 by 640 
Let's see how many times 640 fits into 73964532.

Advancing to step 1:
640 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 640

Advancing to step 2:
73 divided by 640 is 0 with a remainder of 73.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 73, we get 73.
Grab the next digit (9) from the dividend, add it to 73, then carry on: 739 / 640

Moving on to step 3:
If we divide 739 by 640, we get 1 and a remainder of 99.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 640 from 739 to get 99.
Fetch the next digit (6) from the dividend, attach it to 99 and continue: 996 / 640

On to step 4:
If we divide 996 by 640, we get 1 and a remainder of 356.
Write down 1 as next digit of the result. 
Result so far: 11.0
The remainder is 356 after subtracting 640 from 996.
Append the next digit (4) from the dividend to 356 and continue with: 3564 / 640

Going ahead to step 5:
The number 640 fits into 3564 5 times, leaving a remainder of 364.
Put 5 as the next digit of the answer. 
Result so far: 115.0
Deduct 3200 from 3564 and we're left with 364.
Take the next digit (5) from the dividend and append it to 364, then repeat: 3645 / 640

Going ahead to step 6:
The number 640 fits into 3645 5 times, leaving a remainder of 445.
Record the quotient 5 as the next digit in the result. 
Result so far: 1155.0
Subtracting 3200 from 3645 leaves us with 445.
Take the next digit (3) from the dividend and append it to 445, then repeat: 4453 / 640

Let's proceed to step 7:
640 goes into 4453 6 times with a remainder of 613.
Record the quotient 6 as the next digit in the result. 
Result so far: 11556.0
Subtracting 3840 from 4453 leaves us with 613.
Bring next digit (2) of the dividend behind the 613 and repeat the process: 6132 / 640

Moving on to step 8:
When dividing 6132 by 640, we get 9 with a remainder of 372.
The next digit of our result is 9. 
Result so far: 115569.0
Subtract 5760 from 6132 to get 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Step 9:
3720 divided by 640 is 5 with a remainder of 520.
Write down 5 as next digit of the result. 
Result so far: 115569.5
If we take 3200 away from 3720, we end up with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

On to step 10:
If we divide 5200 by 640, we get 8 and a remainder of 80.
The next digit of our result is 8. 
Result so far: 115569.58
Deduct 5120 from 5200 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 11:
640 goes into 800 1 times with a remainder of 160.
Use 1 as the next digit of our solution. 
Result so far: 115569.581
Subtract 640 from 800 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 12:
640 goes into 1600 2 times with a remainder of 320.
Write down 2 as next digit of the result. 
Result so far: 115569.5812
Subtracting 1280 from 1600 leaves us 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.

On to step 13:
The number 640 fits into 3200 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 115569.58125
Deduct 3200 from 3200 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.

Moving on to step 14:
If we divide 0 by 640, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 115569.58125
Subtracting 0 from 0 leaves us 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.

Advancing to step 15:
0 divided by 640 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 115569.58125
Subtracting 0 from 0 leaves us 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.

The quotient of the division is 115569.58125, and the remainder is 0.0.