We're dividing 998463 by 51 
Our goal is to divide 998463 by 51.

Let's proceed to step 1:
51 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 51

Moving on to step 2:
99 divided by 51 is 1 with a remainder of 48.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 51 from 99 and we're left with 48.
Bring next digit (8) of the dividend behind the 48 and repeat the process: 488 / 51

Let's proceed to step 3:
51 goes into 488 9 times with a remainder of 29.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
Subtract 459 from 488 to get 29.
Grab the next digit (4) from the dividend, add it to 29, then carry on: 294 / 51

Moving on to step 4:
The number 51 fits into 294 5 times, leaving a remainder of 39.
Put 5 as the next digit of the answer. 
Result so far: 195.0
If we take 255 away from 294, we end up with 39.
Take the next digit (6) from the dividend and append it to 39, then repeat: 396 / 51

Advancing to step 5:
51 goes into 396 7 times with a remainder of 39.
Record the quotient 7 as the next digit in the result. 
Result so far: 1957.0
If we subtract 357 from 396, we get 39.
Append the next digit (3) from the dividend to 39 and continue with: 393 / 51

Let's proceed to step 6:
51 can be fit into 393 7 times, resulting in a remainder of 36.
Write down 7 as next digit of the result. 
Result so far: 19577.0
Deduct 357 from 393 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 7:
51 goes into 360 7 times with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 19577.7
If we subtract 357 from 360, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 8:
The number 51 fits into 30 0 times, leaving a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 19577.7
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 9:
If we divide 300 by 51, we get 5 and a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 19577.705
Subtracting 255 from 300 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.

Step 10:
The number 51 fits into 450 8 times, leaving a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 19577.7058
Subtract 408 from 450 to 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.

Advancing to step 11:
51 can be fit into 420 8 times, resulting in a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 19577.70588
The remainder is 12 after subtracting 408 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 19577.70588, with a leftover of 1.2e-05.