We're dividing 199557 by 51 
Our goal is to divide 199557 by 51.

On to step 1:
51 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 51

Going ahead to step 2:
51 goes into 19 0 times with a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 19 leaves us with 19.
Fetch the next digit (9) from the dividend, attach it to 19 and continue: 199 / 51

Moving on to step 3:
If we divide 199 by 51, we get 3 and a remainder of 46.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 153 from 199 leaves us with 46.
Bring next digit (5) of the dividend behind the 46 and repeat the process: 465 / 51

On to step 4:
The number 51 fits into 465 9 times, leaving a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 39.0
Subtracting 459 from 465 leaves us with 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 51

Moving on to step 5:
If we divide 65 by 51, we get 1 and a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 391.0
The remainder is 14 after subtracting 51 from 65.
Grab the next digit (7) from the dividend, add it to 14, then carry on: 147 / 51

Going ahead to step 6:
The number 51 fits into 147 2 times, leaving a remainder of 45.
Use 2 as the next digit of our solution. 
Result so far: 3912.0
The remainder is 45 after subtracting 102 from 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 7:
51 goes into 450 8 times with a remainder of 42.
Write down 8 as next digit of the result. 
Result so far: 3912.8
The remainder is 42 after subtracting 408 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 8:
51 goes into 420 8 times with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 3912.88
Subtract 408 from 420 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Our division results in 3912.88 with a remaining 0.012.