We're dividing 87865929 by 312 
We want to divide 87865929 by 312.

Going ahead to step 1:
If we divide 8 by 312, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 312

Moving on to step 2:
When dividing 87 by 312, we get 0 with a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Append the next digit (8) from the dividend to 87 and continue with: 878 / 312

On to step 3:
If we divide 878 by 312, we get 2 and a remainder of 254.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 254 after subtracting 624 from 878.
Take the next digit (6) from the dividend and append it to 254, then repeat: 2546 / 312

On to step 4:
The number 312 fits into 2546 8 times, leaving a remainder of 50.
Put 8 as the next digit of the answer. 
Result so far: 28.0
Subtract 2496 from 2546 to get 50.
Bring next digit (5) of the dividend behind the 50 and repeat the process: 505 / 312

On to step 5:
312 can be fit into 505 1 times, resulting in a remainder of 193.
The number 1 becomes the next digit in our result. 
Result so far: 281.0
If we take 312 away from 505, we end up with 193.
Append the next digit (9) from the dividend to 193 and continue with: 1939 / 312

On to step 6:
If we divide 1939 by 312, we get 6 and a remainder of 67.
The next digit of our result is 6. 
Result so far: 2816.0
If we subtract 1872 from 1939, we get 67.
Append the next digit (2) from the dividend to 67 and continue with: 672 / 312

Let's proceed to step 7:
312 can be fit into 672 2 times, resulting in a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 28162.0
If we subtract 624 from 672, we get 48.
Fetch the next digit (9) from the dividend, attach it to 48 and continue: 489 / 312

Step 8:
489 divided by 312 is 1 with a remainder of 177.
Use 1 as the next digit of our solution. 
Result so far: 281621.0
Deduct 312 from 489 and we're left with 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Let's proceed to step 9:
The number 312 fits into 1770 5 times, leaving a remainder of 210.
Record the quotient 5 as the next digit in the result. 
Result so far: 281621.5
The remainder is 210 after subtracting 1560 from 1770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Step 10:
The number 312 fits into 2100 6 times, leaving a remainder of 228.
Write down 6 as next digit of the result. 
Result so far: 281621.56
Subtract 1872 from 2100 to get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Step 11:
The number 312 fits into 2280 7 times, leaving a remainder of 96.
Write down 7 as next digit of the result. 
Result so far: 281621.567
If we take 2184 away from 2280, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Let's proceed to step 12:
The number 312 fits into 960 3 times, leaving a remainder of 24.
Record the quotient 3 as the next digit in the result. 
Result so far: 281621.5673
Subtract 936 from 960 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:
240 divided by 312 is 0 with a remainder of 240.
The next digit of our result is 0. 
Result so far: 281621.5673
Deduct 0 from 240 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 14:
2400 divided by 312 is 7 with a remainder of 216.
Write down 7 as next digit of the result. 
Result so far: 281621.567307
Deduct 2184 from 2400 and we're left with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Going ahead to step 15:
The number 312 fits into 2160 6 times, leaving a remainder of 288.
The next digit of our result is 6. 
Result so far: 281621.5673076
Deduct 1872 from 2160 and we're left with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Step 16:
The number 312 fits into 2880 9 times, leaving a remainder of 72.
Put 9 as the next digit of the answer. 
Result so far: 281621.56730769
If we subtract 2808 from 2880, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

After the division, we end up with 281621.56730769 and a remainder of 7.2e-08.