Let's divide 81553726 by 640
Our goal is to divide 81553726 by 640.

Going ahead to step 1:
640 can be fit into 8 0 times, resulting in 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.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 640

On to step 2:
640 goes into 81 0 times with a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Take the next digit (5) from the dividend and append it to 81, then repeat: 815 / 640

Let's proceed to step 3:
If we divide 815 by 640, we get 1 and a remainder of 175.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 640 from 815 leaves us with 175.
Take the next digit (5) from the dividend and append it to 175, then repeat: 1755 / 640

Advancing to step 4:
When dividing 1755 by 640, we get 2 with a remainder of 475.
The next digit of our result is 2. 
Result so far: 12.0
Deduct 1280 from 1755 and we're left with 475.
Take the next digit (3) from the dividend and append it to 475, then repeat: 4753 / 640

On to step 5:
The number 640 fits into 4753 7 times, leaving a remainder of 273.
Record the quotient 7 as the next digit in the result. 
Result so far: 127.0
Subtract 4480 from 4753 to get 273.
Include the next digit (7) from the dividend after 273, then repeat: 2737 / 640

Step 6:
The number 640 fits into 2737 4 times, leaving a remainder of 177.
Record the quotient 4 as the next digit in the result. 
Result so far: 1274.0
The remainder is 177 after subtracting 2560 from 2737.
Append the next digit (2) from the dividend to 177 and continue with: 1772 / 640

Let's proceed to step 7:
If we divide 1772 by 640, we get 2 and a remainder of 492.
The number 2 becomes the next digit in our result. 
Result so far: 12742.0
The remainder is 492 after subtracting 1280 from 1772.
Take the next digit (6) from the dividend and append it to 492, then repeat: 4926 / 640

Let's proceed to step 8:
640 goes into 4926 7 times with a remainder of 446.
The number 7 becomes the next digit in our result. 
Result so far: 127427.0
If we take 4480 away from 4926, we end up with 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Going ahead to step 9:
4460 divided by 640 is 6 with a remainder of 620.
Write down 6 as next digit of the result. 
Result so far: 127427.6
Subtracting 3840 from 4460 leaves us with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 10:
The number 640 fits into 6200 9 times, leaving a remainder of 440.
Use 9 as the next digit of our solution. 
Result so far: 127427.69
The remainder is 440 after subtracting 5760 from 6200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 11:
640 goes into 4400 6 times with a remainder of 560.
Use 6 as the next digit of our solution. 
Result so far: 127427.696
Deduct 3840 from 4400 and we're left with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

On to step 12:
5600 divided by 640 is 8 with a remainder of 480.
Write down 8 as next digit of the result. 
Result so far: 127427.6968
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.

Going ahead to step 13:
640 goes into 4800 7 times with a remainder of 320.
Put 7 as the next digit of the answer. 
Result so far: 127427.69687
Subtracting 4480 from 4800 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.

Step 14:
If we divide 3200 by 640, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 127427.696875
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.

On to step 15:
If we divide 0 by 640, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 127427.696875
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.

Going ahead to step 16:
The number 640 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 127427.696875
Subtract 0 from 0 to 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 127427.696875, and the remainder is 0.0.