Let's divide 76976398 by 86
Our goal is to divide 76976398 by 86.

On to step 1:
86 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 86

Step 2:
76 divided by 86 is 0 with a remainder of 76.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 76, we end up with 76.
Grab the next digit (9) from the dividend, add it to 76, then carry on: 769 / 86

Advancing to step 3:
The number 86 fits into 769 8 times, leaving a remainder of 81.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 81 after subtracting 688 from 769.
Bring next digit (7) of the dividend behind the 81 and repeat the process: 817 / 86

Step 4:
If we divide 817 by 86, we get 9 and a remainder of 43.
Write down 9 as next digit of the result. 
Result so far: 89.0
The remainder is 43 after subtracting 774 from 817.
Include the next digit (6) from the dividend after 43, then repeat: 436 / 86

On to step 5:
The number 86 fits into 436 5 times, leaving a remainder of 6.
Put 5 as the next digit of the answer. 
Result so far: 895.0
The remainder is 6 after subtracting 430 from 436.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 86

Moving on to step 6:
When dividing 63 by 86, we get 0 with a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 8950.0
Subtracting 0 from 63 leaves us with 63.
Fetch the next digit (9) from the dividend, attach it to 63 and continue: 639 / 86

On to step 7:
86 goes into 639 7 times with a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 89507.0
Subtract 602 from 639 to get 37.
Take the next digit (8) from the dividend and append it to 37, then repeat: 378 / 86

Moving on to step 8:
378 divided by 86 is 4 with a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 895074.0
If we take 344 away from 378, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 9:
86 goes into 340 3 times with a remainder of 82.
Write down 3 as next digit of the result. 
Result so far: 895074.3
Deduct 258 from 340 and we're left with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Going ahead to step 10:
If we divide 820 by 86, we get 9 and a remainder of 46.
Write down 9 as next digit of the result. 
Result so far: 895074.39
Deduct 774 from 820 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 11:
86 goes into 460 5 times with a remainder of 30.
The next digit of our result is 5. 
Result so far: 895074.395
The remainder is 30 after subtracting 430 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 12:
300 divided by 86 is 3 with a remainder of 42.
The number 3 becomes the next digit in our result. 
Result so far: 895074.3953
If we subtract 258 from 300, 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.

Step 13:
If we divide 420 by 86, we get 4 and a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 895074.39534
Deduct 344 from 420 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 14:
The number 86 fits into 760 8 times, leaving a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 895074.395348
Subtract 688 from 760 to 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.

Going ahead to step 15:
86 goes into 720 8 times with a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 895074.3953488
If we subtract 688 from 720, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 895074.3953488 and a remainder of 3.2e-07.