79631285 ÷ 86 
We're looking to find how many times 86 goes into 79631285.

Going ahead to step 1:
If we divide 7 by 86, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 86

Going ahead to step 2:
86 can be fit into 79 0 times, resulting in a remainder of 79.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 79 to get 79.
Append the next digit (6) from the dividend to 79 and continue with: 796 / 86

On to step 3:
When dividing 796 by 86, we get 9 with a remainder of 22.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 774 from 796 and we're left with 22.
Bring next digit (3) of the dividend behind the 22 and repeat the process: 223 / 86

On to step 4:
If we divide 223 by 86, we get 2 and a remainder of 51.
Write down 2 as next digit of the result. 
Result so far: 92.0
The remainder is 51 after subtracting 172 from 223.
Grab the next digit (1) from the dividend, add it to 51, then carry on: 511 / 86

Step 5:
86 goes into 511 5 times with a remainder of 81.
Put 5 as the next digit of the answer. 
Result so far: 925.0
Subtract 430 from 511 to get 81.
Take the next digit (2) from the dividend and append it to 81, then repeat: 812 / 86

Moving on to step 6:
The number 86 fits into 812 9 times, leaving a remainder of 38.
Put 9 as the next digit of the answer. 
Result so far: 9259.0
The remainder is 38 after subtracting 774 from 812.
Include the next digit (8) from the dividend after 38, then repeat: 388 / 86

Step 7:
If we divide 388 by 86, we get 4 and a remainder of 44.
The next digit of our result is 4. 
Result so far: 92594.0
Subtract 344 from 388 to get 44.
Append the next digit (5) from the dividend to 44 and continue with: 445 / 86

Let's proceed to step 8:
86 can be fit into 445 5 times, resulting in a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 925945.0
Deduct 430 from 445 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 9:
86 goes into 150 1 times with a remainder of 64.
The next digit of our result is 1. 
Result so far: 925945.1
Subtracting 86 from 150 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.

Going ahead to step 10:
640 divided by 86 is 7 with a remainder of 38.
Put 7 as the next digit of the answer. 
Result so far: 925945.17
Subtract 602 from 640 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 11:
The number 86 fits into 380 4 times, leaving a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 925945.174
If we subtract 344 from 380, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 12:
86 goes into 360 4 times with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 925945.1744
Subtract 344 from 360 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final result is 925945.1744 with a remainder of 0.00016.