251286 ÷ 99 
Our goal is to divide 251286 by 99.

Advancing to step 1:
The number 99 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 99

Step 2:
The number 99 fits into 25 0 times, leaving a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Take the next digit (1) from the dividend and append it to 25, then repeat: 251 / 99

Advancing to step 3:
If we divide 251 by 99, we get 2 and a remainder of 53.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 198 away from 251, we end up with 53.
Take the next digit (2) from the dividend and append it to 53, then repeat: 532 / 99

Step 4:
99 goes into 532 5 times with a remainder of 37.
The next digit of our result is 5. 
Result so far: 25.0
If we take 495 away from 532, we end up with 37.
Grab the next digit (8) from the dividend, add it to 37, then carry on: 378 / 99

On to step 5:
99 can be fit into 378 3 times, resulting in a remainder of 81.
Use 3 as the next digit of our solution. 
Result so far: 253.0
If we take 297 away from 378, we end up with 81.
Fetch the next digit (6) from the dividend, attach it to 81 and continue: 816 / 99

Let's proceed to step 6:
The number 99 fits into 816 8 times, leaving a remainder of 24.
The next digit of our result is 8. 
Result so far: 2538.0
Subtracting 792 from 816 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 7:
99 goes into 240 2 times with a remainder of 42.
Use 2 as the next digit of our solution. 
Result so far: 2538.2
If we take 198 away from 240, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 8:
The number 99 fits into 420 4 times, leaving a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 2538.24
Subtracting 396 from 420 leaves us with 24.
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 9:
240 divided by 99 is 2 with a remainder of 42.
The number 2 becomes the next digit in our result. 
Result so far: 2538.242
If we take 198 away from 240, we end up with 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 10:
99 goes into 420 4 times with a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 2538.2424
The remainder is 24 after subtracting 396 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 11:
When dividing 240 by 99, we get 2 with a remainder of 42.
Use 2 as the next digit of our solution. 
Result so far: 2538.24242
If we take 198 away from 240, we end up with 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 12:
If we divide 420 by 99, we get 4 and a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 2538.242424
Subtract 396 from 420 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 13:
When dividing 240 by 99, we get 2 with a remainder of 42.
Record the quotient 2 as the next digit in the result. 
Result so far: 2538.2424242
If we subtract 198 from 240, 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 14:
If we divide 420 by 99, we get 4 and a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 2538.24242424
If we subtract 396 from 420, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 2538.24242424, with a leftover of 2.4e-08.