86569136 divided by 831 
Let's see how many times 831 fits into 86569136.

Going ahead to step 1:
8 divided by 831 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 831

Going ahead to step 2:
831 can be fit into 86 0 times, resulting in a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Take the next digit (5) from the dividend and append it to 86, then repeat: 865 / 831

Advancing to step 3:
If we divide 865 by 831, we get 1 and a remainder of 34.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 34 after subtracting 831 from 865.
Append the next digit (6) from the dividend to 34 and continue with: 346 / 831

Moving on to step 4:
When dividing 346 by 831, we get 0 with a remainder of 346.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtract 0 from 346 to get 346.
Grab the next digit (9) from the dividend, add it to 346, then carry on: 3469 / 831

Let's proceed to step 5:
If we divide 3469 by 831, we get 4 and a remainder of 145.
The next digit of our result is 4. 
Result so far: 104.0
Deduct 3324 from 3469 and we're left with 145.
Append the next digit (1) from the dividend to 145 and continue with: 1451 / 831

Step 6:
If we divide 1451 by 831, we get 1 and a remainder of 620.
Record the quotient 1 as the next digit in the result. 
Result so far: 1041.0
If we take 831 away from 1451, we end up with 620.
Grab the next digit (3) from the dividend, add it to 620, then carry on: 6203 / 831

Moving on to step 7:
6203 divided by 831 is 7 with a remainder of 386.
The next digit of our result is 7. 
Result so far: 10417.0
The remainder is 386 after subtracting 5817 from 6203.
Take the next digit (6) from the dividend and append it to 386, then repeat: 3866 / 831

Advancing to step 8:
831 can be fit into 3866 4 times, resulting in a remainder of 542.
Write down 4 as next digit of the result. 
Result so far: 104174.0
Subtracting 3324 from 3866 leaves us with 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

Advancing to step 9:
The number 831 fits into 5420 6 times, leaving a remainder of 434.
Use 6 as the next digit of our solution. 
Result so far: 104174.6
Subtract 4986 from 5420 to get 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Going ahead to step 10:
831 can be fit into 4340 5 times, resulting in a remainder of 185.
The number 5 becomes the next digit in our result. 
Result so far: 104174.65
If we take 4155 away from 4340, we end up with 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Let's proceed to step 11:
The number 831 fits into 1850 2 times, leaving a remainder of 188.
Record the quotient 2 as the next digit in the result. 
Result so far: 104174.652
The remainder is 188 after subtracting 1662 from 1850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Step 12:
831 goes into 1880 2 times with a remainder of 218.
The next digit of our result is 2. 
Result so far: 104174.6522
Deduct 1662 from 1880 and we're left with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

After the division, we end up with 104174.6522 and a remainder of 0.00218.