We look at the division of 99640 by 51 
Our goal is to divide 99640 by 51.

Advancing to step 1:
When dividing 9 by 51, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 51

Going ahead to step 2:
When dividing 99 by 51, we get 1 with a remainder of 48.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 48 after subtracting 51 from 99.
Append the next digit (6) from the dividend to 48 and continue with: 486 / 51

Step 3:
The number 51 fits into 486 9 times, leaving a remainder of 27.
The next digit of our result is 9. 
Result so far: 19.0
If we take 459 away from 486, we end up with 27.
Append the next digit (4) from the dividend to 27 and continue with: 274 / 51

Moving on to step 4:
If we divide 274 by 51, we get 5 and a remainder of 19.
Put 5 as the next digit of the answer. 
Result so far: 195.0
If we take 255 away from 274, we end up with 19.
Grab the next digit (0) from the dividend, add it to 19, then carry on: 190 / 51

Going ahead to step 5:
When dividing 190 by 51, we get 3 with a remainder of 37.
Write down 3 as next digit of the result. 
Result so far: 1953.0
Subtract 153 from 190 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 6:
51 goes into 370 7 times with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 1953.7
Subtract 357 from 370 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 7:
If we divide 130 by 51, we get 2 and a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 1953.72
If we subtract 102 from 130, 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.

Going ahead to step 8:
280 divided by 51 is 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 1953.725
If we subtract 255 from 280, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 9:
51 can be fit into 250 4 times, resulting in a remainder of 46.
Write down 4 as next digit of the result. 
Result so far: 1953.7254
Subtract 204 from 250 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 10:
51 can be fit into 460 9 times, resulting in a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 1953.72549
The remainder is 1 after subtracting 459 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 11:
51 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 1953.72549
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 12:
When dividing 100 by 51, we get 1 with a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 1953.7254901
Subtracting 51 from 100 leaves us 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 13:
490 divided by 51 is 9 with a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 1953.72549019
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.

The final result is 1953.72549019 with a remainder of 3.1e-08.