53131945 ÷ 641 
We want to figure out the number of times 53131945 can be divided by 641.

Moving on to step 1:
5 divided by 641 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 641

On to step 2:
When dividing 53 by 641, we get 0 with a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 53 leaves us with 53.
Grab the next digit (1) from the dividend, add it to 53, then carry on: 531 / 641

Going ahead to step 3:
531 divided by 641 is 0 with a remainder of 531.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 531 leaves us with 531.
Fetch the next digit (3) from the dividend, attach it to 531 and continue: 5313 / 641

Moving on to step 4:
641 goes into 5313 8 times with a remainder of 185.
The next digit of our result is 8. 
Result so far: 8.0
Deduct 5128 from 5313 and we're left with 185.
Take the next digit (1) from the dividend and append it to 185, then repeat: 1851 / 641

On to step 5:
641 goes into 1851 2 times with a remainder of 569.
Record the quotient 2 as the next digit in the result. 
Result so far: 82.0
The remainder is 569 after subtracting 1282 from 1851.
Grab the next digit (9) from the dividend, add it to 569, then carry on: 5699 / 641

Step 6:
641 goes into 5699 8 times with a remainder of 571.
The number 8 becomes the next digit in our result. 
Result so far: 828.0
The remainder is 571 after subtracting 5128 from 5699.
Bring next digit (4) of the dividend behind the 571 and repeat the process: 5714 / 641

Moving on to step 7:
When dividing 5714 by 641, we get 8 with a remainder of 586.
Put 8 as the next digit of the answer. 
Result so far: 8288.0
If we take 5128 away from 5714, we end up with 586.
Fetch the next digit (5) from the dividend, attach it to 586 and continue: 5865 / 641

Moving on to step 8:
If we divide 5865 by 641, we get 9 and a remainder of 96.
Put 9 as the next digit of the answer. 
Result so far: 82889.0
If we subtract 5769 from 5865, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

On to step 9:
When dividing 960 by 641, we get 1 with a remainder of 319.
The number 1 becomes the next digit in our result. 
Result so far: 82889.1
Deduct 641 from 960 and we're left with 319.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3190, and continue the process.

Step 10:
641 can be fit into 3190 4 times, resulting in a remainder of 626.
Put 4 as the next digit of the answer. 
Result so far: 82889.14
Subtracting 2564 from 3190 leaves us with 626.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6260, and continue the process.

Moving on to step 11:
When dividing 6260 by 641, we get 9 with a remainder of 491.
Write down 9 as next digit of the result. 
Result so far: 82889.149
If we take 5769 away from 6260, we end up with 491.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4910, and continue the process.

On to step 12:
If we divide 4910 by 641, we get 7 and a remainder of 423.
Use 7 as the next digit of our solution. 
Result so far: 82889.1497
If we take 4487 away from 4910, we end up with 423.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4230, and continue the process.

Going ahead to step 13:
4230 divided by 641 is 6 with a remainder of 384.
Record the quotient 6 as the next digit in the result. 
Result so far: 82889.14976
Subtract 3846 from 4230 to get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

On to step 14:
The number 641 fits into 3840 5 times, leaving a remainder of 635.
Write down 5 as next digit of the result. 
Result so far: 82889.149765
If we take 3205 away from 3840, we end up with 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Advancing to step 15:
6350 divided by 641 is 9 with a remainder of 581.
The next digit of our result is 9. 
Result so far: 82889.1497659
The remainder is 581 after subtracting 5769 from 6350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5810, and continue the process.

Moving on to step 16:
5810 divided by 641 is 9 with a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 82889.14976599
The remainder is 41 after subtracting 5769 from 5810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Our division results in 82889.14976599 with a remaining 4.1e-08.