We look at the division of 191857 by 51 
We want to divide 191857 by 51.

Let's proceed to step 1:
1 divided by 51 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 51

Let's proceed to step 2:
51 can be fit into 19 0 times, resulting in a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 19, we end up with 19.
Include the next digit (1) from the dividend after 19, then repeat: 191 / 51

Going ahead to step 3:
When dividing 191 by 51, we get 3 with a remainder of 38.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 153 away from 191, we end up with 38.
Take the next digit (8) from the dividend and append it to 38, then repeat: 388 / 51

Moving on to step 4:
When dividing 388 by 51, we get 7 with a remainder of 31.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
The remainder is 31 after subtracting 357 from 388.
Grab the next digit (5) from the dividend, add it to 31, then carry on: 315 / 51

On to step 5:
The number 51 fits into 315 6 times, leaving a remainder of 9.
The number 6 becomes the next digit in our result. 
Result so far: 376.0
Deduct 306 from 315 and we're left with 9.
Include the next digit (7) from the dividend after 9, then repeat: 97 / 51

On to step 6:
51 goes into 97 1 times with a remainder of 46.
Put 1 as the next digit of the answer. 
Result so far: 3761.0
Subtract 51 from 97 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 7:
51 can be fit into 460 9 times, resulting in a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 3761.9
Subtract 459 from 460 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 8:
The number 51 fits into 10 0 times, leaving a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 3761.9
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
51 can be fit into 100 1 times, resulting in a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 3761.901
Deduct 51 from 100 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 10:
51 goes into 490 9 times with a remainder of 31.
The next digit of our result is 9. 
Result so far: 3761.9019
If we take 459 away from 490, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 11:
51 goes into 310 6 times with a remainder of 4.
The next digit of our result is 6. 
Result so far: 3761.90196
The remainder is 4 after subtracting 306 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 12:
If we divide 40 by 51, we get 0 and a remainder of 40.
The next digit of our result is 0. 
Result so far: 3761.90196
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 13:
If we divide 400 by 51, we get 7 and a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 3761.9019607
Deduct 357 from 400 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 14:
The number 51 fits into 430 8 times, leaving a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 3761.90196078
If we take 408 away from 430, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final result is 3761.90196078 with a remainder of 2.2e-08.