99585183 ÷ 51 
Our goal is to divide 99585183 by 51.

Moving on to step 1:
The number 51 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 51

Let's proceed to step 2:
If we divide 99 by 51, we get 1 and a remainder of 48.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 51 from 99 to get 48.
Bring next digit (5) of the dividend behind the 48 and repeat the process: 485 / 51

On to step 3:
51 can be fit into 485 9 times, resulting in a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Subtracting 459 from 485 leaves us with 26.
Append the next digit (8) from the dividend to 26 and continue with: 268 / 51

Let's proceed to step 4:
51 can be fit into 268 5 times, resulting in a remainder of 13.
Record the quotient 5 as the next digit in the result. 
Result so far: 195.0
Subtract 255 from 268 to get 13.
Take the next digit (5) from the dividend and append it to 13, then repeat: 135 / 51

Step 5:
135 divided by 51 is 2 with a remainder of 33.
Put 2 as the next digit of the answer. 
Result so far: 1952.0
Deduct 102 from 135 and we're left with 33.
Fetch the next digit (1) from the dividend, attach it to 33 and continue: 331 / 51

Let's proceed to step 6:
331 divided by 51 is 6 with a remainder of 25.
Write down 6 as next digit of the result. 
Result so far: 19526.0
The remainder is 25 after subtracting 306 from 331.
Take the next digit (8) from the dividend and append it to 25, then repeat: 258 / 51

Going ahead to step 7:
51 goes into 258 5 times with a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 195265.0
Subtract 255 from 258 to get 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 51

Moving on to step 8:
If we divide 33 by 51, we get 0 and a remainder of 33.
The number 0 becomes the next digit in our result. 
Result so far: 1952650.0
The remainder is 33 after subtracting 0 from 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 9:
When dividing 330 by 51, we get 6 with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 1952650.6
The remainder is 24 after subtracting 306 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 10:
When dividing 240 by 51, we get 4 with a remainder of 36.
The next digit of our result is 4. 
Result so far: 1952650.64
The remainder is 36 after subtracting 204 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 11:
51 can be fit into 360 7 times, resulting in a remainder of 3.
The next digit of our result is 7. 
Result so far: 1952650.647
If we take 357 away from 360, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 12:
30 divided by 51 is 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 1952650.647
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 13:
51 goes into 300 5 times with a remainder of 45.
The next digit of our result is 5. 
Result so far: 1952650.64705
The remainder is 45 after subtracting 255 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 14:
51 can be fit into 450 8 times, resulting in a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 1952650.647058
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 15:
If we divide 420 by 51, we get 8 and a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 1952650.6470588
Deduct 408 from 420 and we're left with 12.
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 1952650.6470588, with a leftover of 1.2e-07.