Let's divide 52129844 by 391
We want to divide 52129844 by 391.

Step 1:
If we divide 5 by 391, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 391

Step 2:
391 goes into 52 0 times with a remainder of 52.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 52 to get 52.
Take the next digit (1) from the dividend and append it to 52, then repeat: 521 / 391

Moving on to step 3:
If we divide 521 by 391, we get 1 and a remainder of 130.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 391 from 521 leaves us with 130.
Bring next digit (2) of the dividend behind the 130 and repeat the process: 1302 / 391

Going ahead to step 4:
391 can be fit into 1302 3 times, resulting in a remainder of 129.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Deduct 1173 from 1302 and we're left with 129.
Take the next digit (9) from the dividend and append it to 129, then repeat: 1299 / 391

Moving on to step 5:
391 goes into 1299 3 times with a remainder of 126.
The next digit of our result is 3. 
Result so far: 133.0
If we subtract 1173 from 1299, we get 126.
Append the next digit (8) from the dividend to 126 and continue with: 1268 / 391

Advancing to step 6:
1268 divided by 391 is 3 with a remainder of 95.
Put 3 as the next digit of the answer. 
Result so far: 1333.0
If we take 1173 away from 1268, we end up with 95.
Take the next digit (4) from the dividend and append it to 95, then repeat: 954 / 391

Going ahead to step 7:
When dividing 954 by 391, we get 2 with a remainder of 172.
The next digit of our result is 2. 
Result so far: 13332.0
Subtract 782 from 954 to get 172.
Take the next digit (4) from the dividend and append it to 172, then repeat: 1724 / 391

Moving on to step 8:
391 goes into 1724 4 times with a remainder of 160.
Record the quotient 4 as the next digit in the result. 
Result so far: 133324.0
If we subtract 1564 from 1724, we 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.

Moving on to step 9:
If we divide 1600 by 391, we get 4 and a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 133324.4
If we subtract 1564 from 1600, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 10:
391 can be fit into 360 0 times, resulting in a remainder of 360.
The next digit of our result is 0. 
Result so far: 133324.4
Subtracting 0 from 360 leaves us with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 11:
The number 391 fits into 3600 9 times, leaving a remainder of 81.
Record the quotient 9 as the next digit in the result. 
Result so far: 133324.409
If we take 3519 away from 3600, we end up with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Moving on to step 12:
When dividing 810 by 391, we get 2 with a remainder of 28.
The next digit of our result is 2. 
Result so far: 133324.4092
If we subtract 782 from 810, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 13:
When dividing 280 by 391, we get 0 with a remainder of 280.
Record the quotient 0 as the next digit in the result. 
Result so far: 133324.4092
If we subtract 0 from 280, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 14:
The number 391 fits into 2800 7 times, leaving a remainder of 63.
Use 7 as the next digit of our solution. 
Result so far: 133324.409207
If we take 2737 away from 2800, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Going ahead to step 15:
391 goes into 630 1 times with a remainder of 239.
Record the quotient 1 as the next digit in the result. 
Result so far: 133324.4092071
Subtracting 391 from 630 leaves us with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Advancing to step 16:
2390 divided by 391 is 6 with a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 133324.40920716
The remainder is 44 after subtracting 2346 from 2390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final result is 133324.40920716 with a remainder of 4.4e-08.