78696082 ÷ 864 
Our goal is to divide 78696082 by 864.

On to step 1:
If we divide 7 by 864, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 864

On to step 2:
864 goes into 78 0 times with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Include the next digit (6) from the dividend after 78, then repeat: 786 / 864

Step 3:
864 goes into 786 0 times with a remainder of 786.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 786 to get 786.
Include the next digit (9) from the dividend after 786, then repeat: 7869 / 864

Moving on to step 4:
The number 864 fits into 7869 9 times, leaving a remainder of 93.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 7776 from 7869 and we're left with 93.
Append the next digit (6) from the dividend to 93 and continue with: 936 / 864

On to step 5:
864 goes into 936 1 times with a remainder of 72.
Write down 1 as next digit of the result. 
Result so far: 91.0
Subtract 864 from 936 to get 72.
Append the next digit (0) from the dividend to 72 and continue with: 720 / 864

Let's proceed to step 6:
720 divided by 864 is 0 with a remainder of 720.
Use 0 as the next digit of our solution. 
Result so far: 910.0
Subtracting 0 from 720 leaves us with 720.
Take the next digit (8) from the dividend and append it to 720, then repeat: 7208 / 864

On to step 7:
7208 divided by 864 is 8 with a remainder of 296.
The next digit of our result is 8. 
Result so far: 9108.0
Subtract 6912 from 7208 to get 296.
Bring next digit (2) of the dividend behind the 296 and repeat the process: 2962 / 864

Moving on to step 8:
864 goes into 2962 3 times with a remainder of 370.
Record the quotient 3 as the next digit in the result. 
Result so far: 91083.0
Deduct 2592 from 2962 and we're left with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Going ahead to step 9:
When dividing 3700 by 864, we get 4 with a remainder of 244.
Put 4 as the next digit of the answer. 
Result so far: 91083.4
The remainder is 244 after subtracting 3456 from 3700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Advancing to step 10:
864 can be fit into 2440 2 times, resulting in a remainder of 712.
Put 2 as the next digit of the answer. 
Result so far: 91083.42
If we subtract 1728 from 2440, we get 712.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

Step 11:
When dividing 7120 by 864, we get 8 with a remainder of 208.
Use 8 as the next digit of our solution. 
Result so far: 91083.428
Subtract 6912 from 7120 to get 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Let's proceed to step 12:
2080 divided by 864 is 2 with a remainder of 352.
The next digit of our result is 2. 
Result so far: 91083.4282
If we subtract 1728 from 2080, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

On to step 13:
864 can be fit into 3520 4 times, resulting in a remainder of 64.
Write down 4 as next digit of the result. 
Result so far: 91083.42824
Subtracting 3456 from 3520 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 14:
The number 864 fits into 640 0 times, leaving a remainder of 640.
Use 0 as the next digit of our solution. 
Result so far: 91083.42824
Deduct 0 from 640 and we're left with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Step 15:
If we divide 6400 by 864, we get 7 and a remainder of 352.
Record the quotient 7 as the next digit in the result. 
Result so far: 91083.4282407
Subtract 6048 from 6400 to get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Going ahead to step 16:
The number 864 fits into 3520 4 times, leaving a remainder of 64.
Use 4 as the next digit of our solution. 
Result so far: 91083.42824074
The remainder is 64 after subtracting 3456 from 3520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final outcome is 91083.42824074, with a leftover of 6.4e-08.