We're dividing 998676 by 51 
Let's see how many times 51 fits into 998676.

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
Subtract 0 from 9 to get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 51

On to step 2:
If we divide 99 by 51, we get 1 and a remainder of 48.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 51 from 99 leaves us with 48.
Bring next digit (8) of the dividend behind the 48 and repeat the process: 488 / 51

Advancing to step 3:
The number 51 fits into 488 9 times, leaving a remainder of 29.
Put 9 as the next digit of the answer. 
Result so far: 19.0
Subtract 459 from 488 to get 29.
Bring next digit (6) of the dividend behind the 29 and repeat the process: 296 / 51

Moving on to step 4:
If we divide 296 by 51, we get 5 and a remainder of 41.
Use 5 as the next digit of our solution. 
Result so far: 195.0
Deduct 255 from 296 and we're left with 41.
Bring next digit (7) of the dividend behind the 41 and repeat the process: 417 / 51

Advancing to step 5:
51 can be fit into 417 8 times, resulting in a remainder of 9.
The next digit of our result is 8. 
Result so far: 1958.0
If we subtract 408 from 417, we get 9.
Append the next digit (6) from the dividend to 9 and continue with: 96 / 51

Moving on to step 6:
If we divide 96 by 51, we get 1 and a remainder of 45.
Write down 1 as next digit of the result. 
Result so far: 19581.0
Subtracting 51 from 96 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 7:
When dividing 450 by 51, we get 8 with a remainder of 42.
The next digit of our result is 8. 
Result so far: 19581.8
If we subtract 408 from 450, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 8:
If we divide 420 by 51, we get 8 and a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 19581.88
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 19581.88 with a remaining 0.012.