We look at the division of 71529145 by 641 
We want to figure out the number of times 71529145 can be divided by 641.

Let's proceed to step 1:
The number 641 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 641

Advancing to step 2:
The number 641 fits into 71 0 times, leaving a remainder of 71.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 71 after subtracting 0 from 71.
Bring next digit (5) of the dividend behind the 71 and repeat the process: 715 / 641

Let's proceed to step 3:
641 can be fit into 715 1 times, resulting in a remainder of 74.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 641 from 715 to get 74.
Include the next digit (2) from the dividend after 74, then repeat: 742 / 641

Step 4:
When dividing 742 by 641, we get 1 with a remainder of 101.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 641 from 742 to get 101.
Append the next digit (9) from the dividend to 101 and continue with: 1019 / 641

On to step 5:
641 can be fit into 1019 1 times, resulting in a remainder of 378.
Record the quotient 1 as the next digit in the result. 
Result so far: 111.0
Subtracting 641 from 1019 leaves us with 378.
Include the next digit (1) from the dividend after 378, then repeat: 3781 / 641

On to step 6:
The number 641 fits into 3781 5 times, leaving a remainder of 576.
The number 5 becomes the next digit in our result. 
Result so far: 1115.0
If we take 3205 away from 3781, we end up with 576.
Grab the next digit (4) from the dividend, add it to 576, then carry on: 5764 / 641

Step 7:
The number 641 fits into 5764 8 times, leaving a remainder of 636.
The next digit of our result is 8. 
Result so far: 11158.0
The remainder is 636 after subtracting 5128 from 5764.
Bring next digit (5) of the dividend behind the 636 and repeat the process: 6365 / 641

Let's proceed to step 8:
When dividing 6365 by 641, we get 9 with a remainder of 596.
Record the quotient 9 as the next digit in the result. 
Result so far: 111589.0
The remainder is 596 after subtracting 5769 from 6365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

Step 9:
5960 divided by 641 is 9 with a remainder of 191.
Use 9 as the next digit of our solution. 
Result so far: 111589.9
Subtract 5769 from 5960 to get 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

Advancing to step 10:
1910 divided by 641 is 2 with a remainder of 628.
Put 2 as the next digit of the answer. 
Result so far: 111589.92
If we take 1282 away from 1910, we end up with 628.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

Advancing to step 11:
If we divide 6280 by 641, we get 9 and a remainder of 511.
Write down 9 as next digit of the result. 
Result so far: 111589.929
If we take 5769 away from 6280, we end up with 511.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5110, and continue the process.

Let's proceed to step 12:
When dividing 5110 by 641, we get 7 with a remainder of 623.
The number 7 becomes the next digit in our result. 
Result so far: 111589.9297
The remainder is 623 after subtracting 4487 from 5110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6230, and continue the process.

Going ahead to step 13:
641 can be fit into 6230 9 times, resulting in a remainder of 461.
Record the quotient 9 as the next digit in the result. 
Result so far: 111589.92979
Deduct 5769 from 6230 and we're left with 461.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4610, and continue the process.

On to step 14:
4610 divided by 641 is 7 with a remainder of 123.
Record the quotient 7 as the next digit in the result. 
Result so far: 111589.929797
Subtracting 4487 from 4610 leaves us with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Moving on to step 15:
641 goes into 1230 1 times with a remainder of 589.
Record the quotient 1 as the next digit in the result. 
Result so far: 111589.9297971
If we take 641 away from 1230, we end up with 589.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5890, and continue the process.

Advancing to step 16:
641 goes into 5890 9 times with a remainder of 121.
Use 9 as the next digit of our solution. 
Result so far: 111589.92979719
If we take 5769 away from 5890, we end up with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

After the division, we end up with 111589.92979719 and a remainder of 1.21e-07.