Let's divide 87891260 by 312
Our goal is to divide 87891260 by 312.

Step 1:
When dividing 8 by 312, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 312

Step 2:
The number 312 fits into 87 0 times, leaving a remainder of 87.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Append the next digit (8) from the dividend to 87 and continue with: 878 / 312

Going ahead to step 3:
878 divided by 312 is 2 with a remainder of 254.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 624 from 878 leaves us with 254.
Append the next digit (9) from the dividend to 254 and continue with: 2549 / 312

On to step 4:
When dividing 2549 by 312, we get 8 with a remainder of 53.
The next digit of our result is 8. 
Result so far: 28.0
Subtracting 2496 from 2549 leaves us with 53.
Append the next digit (1) from the dividend to 53 and continue with: 531 / 312

Going ahead to step 5:
312 goes into 531 1 times with a remainder of 219.
Write down 1 as next digit of the result. 
Result so far: 281.0
Subtracting 312 from 531 leaves us with 219.
Take the next digit (2) from the dividend and append it to 219, then repeat: 2192 / 312

On to step 6:
2192 divided by 312 is 7 with a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 2817.0
Subtract 2184 from 2192 to get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 312

Let's proceed to step 7:
If we divide 86 by 312, we get 0 and a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 28170.0
If we subtract 0 from 86, we get 86.
Bring next digit (0) of the dividend behind the 86 and repeat the process: 860 / 312

Going ahead to step 8:
860 divided by 312 is 2 with a remainder of 236.
Use 2 as the next digit of our solution. 
Result so far: 281702.0
Subtract 624 from 860 to get 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

On to step 9:
312 goes into 2360 7 times with a remainder of 176.
Write down 7 as next digit of the result. 
Result so far: 281702.7
Subtract 2184 from 2360 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

On to step 10:
The number 312 fits into 1760 5 times, leaving a remainder of 200.
Write down 5 as next digit of the result. 
Result so far: 281702.75
If we subtract 1560 from 1760, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 11:
312 can be fit into 2000 6 times, resulting in a remainder of 128.
The number 6 becomes the next digit in our result. 
Result so far: 281702.756
Subtracting 1872 from 2000 leaves us with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Going ahead to step 12:
When dividing 1280 by 312, we get 4 with a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 281702.7564
Deduct 1248 from 1280 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 13:
312 goes into 320 1 times with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 281702.75641
Deduct 312 from 320 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 14:
312 goes into 80 0 times with a remainder of 80.
The next digit of our result is 0. 
Result so far: 281702.75641
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 15:
If we divide 800 by 312, we get 2 and a remainder of 176.
Write down 2 as next digit of the result. 
Result so far: 281702.7564102
The remainder is 176 after subtracting 624 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Going ahead to step 16:
1760 divided by 312 is 5 with a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 281702.75641025
Subtracting 1560 from 1760 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 281702.75641025, with a leftover of 2e-07.