We look at the division of 251877 by 86 
Let's see how many times 86 fits into 251877.

Going ahead to step 1:
When dividing 2 by 86, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 86

Advancing to step 2:
If we divide 25 by 86, we get 0 and a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 25 to get 25.
Include the next digit (1) from the dividend after 25, then repeat: 251 / 86

On to step 3:
251 divided by 86 is 2 with a remainder of 79.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 172 from 251 leaves us with 79.
Include the next digit (8) from the dividend after 79, then repeat: 798 / 86

Step 4:
The number 86 fits into 798 9 times, leaving a remainder of 24.
Use 9 as the next digit of our solution. 
Result so far: 29.0
Deduct 774 from 798 and we're left with 24.
Append the next digit (7) from the dividend to 24 and continue with: 247 / 86

Step 5:
86 goes into 247 2 times with a remainder of 75.
Use 2 as the next digit of our solution. 
Result so far: 292.0
Subtract 172 from 247 to get 75.
Bring next digit (7) of the dividend behind the 75 and repeat the process: 757 / 86

Moving on to step 6:
If we divide 757 by 86, we get 8 and a remainder of 69.
Put 8 as the next digit of the answer. 
Result so far: 2928.0
If we take 688 away from 757, we end up with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Step 7:
If we divide 690 by 86, we get 8 and a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 2928.8
If we subtract 688 from 690, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
86 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 2928.8
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
The number 86 fits into 200 2 times, leaving a remainder of 28.
The next digit of our result is 2. 
Result so far: 2928.802
The remainder is 28 after subtracting 172 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 10:
86 goes into 280 3 times with a remainder of 22.
The number 3 becomes the next digit in our result. 
Result so far: 2928.8023
If we take 258 away from 280, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 11:
86 can be fit into 220 2 times, resulting in a remainder of 48.
The next digit of our result is 2. 
Result so far: 2928.80232
Subtract 172 from 220 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 12:
When dividing 480 by 86, we get 5 with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 2928.802325
The remainder is 50 after subtracting 430 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 13:
The number 86 fits into 500 5 times, leaving a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 2928.8023255
Deduct 430 from 500 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

After the division, we end up with 2928.8023255 and a remainder of 7e-07.