Let's divide 86778974 by 831
We're looking to find how many times 831 goes into 86778974.

Going ahead to step 1:
When dividing 8 by 831, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 831

Going ahead to step 2:
831 can be fit into 86 0 times, resulting in a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Append the next digit (7) from the dividend to 86 and continue with: 867 / 831

Moving on to step 3:
When dividing 867 by 831, we get 1 with a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 831 away from 867, we end up with 36.
Include the next digit (7) from the dividend after 36, then repeat: 367 / 831

Going ahead to step 4:
When dividing 367 by 831, we get 0 with a remainder of 367.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 367, we get 367.
Include the next digit (8) from the dividend after 367, then repeat: 3678 / 831

Moving on to step 5:
831 goes into 3678 4 times with a remainder of 354.
Use 4 as the next digit of our solution. 
Result so far: 104.0
The remainder is 354 after subtracting 3324 from 3678.
Fetch the next digit (9) from the dividend, attach it to 354 and continue: 3549 / 831

Going ahead to step 6:
The number 831 fits into 3549 4 times, leaving a remainder of 225.
Write down 4 as next digit of the result. 
Result so far: 1044.0
Subtract 3324 from 3549 to get 225.
Take the next digit (7) from the dividend and append it to 225, then repeat: 2257 / 831

Let's proceed to step 7:
When dividing 2257 by 831, we get 2 with a remainder of 595.
Record the quotient 2 as the next digit in the result. 
Result so far: 10442.0
Deduct 1662 from 2257 and we're left with 595.
Bring next digit (4) of the dividend behind the 595 and repeat the process: 5954 / 831

Let's proceed to step 8:
The number 831 fits into 5954 7 times, leaving a remainder of 137.
The number 7 becomes the next digit in our result. 
Result so far: 104427.0
The remainder is 137 after subtracting 5817 from 5954.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Advancing to step 9:
When dividing 1370 by 831, we get 1 with a remainder of 539.
The number 1 becomes the next digit in our result. 
Result so far: 104427.1
Deduct 831 from 1370 and we're left with 539.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5390, and continue the process.

Advancing to step 10:
5390 divided by 831 is 6 with a remainder of 404.
Write down 6 as next digit of the result. 
Result so far: 104427.16
If we take 4986 away from 5390, we end up with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Advancing to step 11:
The number 831 fits into 4040 4 times, leaving a remainder of 716.
Write down 4 as next digit of the result. 
Result so far: 104427.164
The remainder is 716 after subtracting 3324 from 4040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

Step 12:
When dividing 7160 by 831, we get 8 with a remainder of 512.
Use 8 as the next digit of our solution. 
Result so far: 104427.1648
The remainder is 512 after subtracting 6648 from 7160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Let's proceed to step 13:
The number 831 fits into 5120 6 times, leaving a remainder of 134.
Use 6 as the next digit of our solution. 
Result so far: 104427.16486
Subtracting 4986 from 5120 leaves us with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Moving on to step 14:
831 can be fit into 1340 1 times, resulting in a remainder of 509.
Record the quotient 1 as the next digit in the result. 
Result so far: 104427.164861
Deduct 831 from 1340 and we're left with 509.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5090, and continue the process.

Moving on to step 15:
831 can be fit into 5090 6 times, resulting in a remainder of 104.
Use 6 as the next digit of our solution. 
Result so far: 104427.1648616
Deduct 4986 from 5090 and we're left with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Let's proceed to step 16:
The number 831 fits into 1040 1 times, leaving a remainder of 209.
Use 1 as the next digit of our solution. 
Result so far: 104427.16486161
Subtracting 831 from 1040 leaves us with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

The final outcome is 104427.16486161, with a leftover of 2.09e-07.