Let's divide 86511092 by 12
We're looking to find how many times 12 goes into 86511092.

Moving on to step 1:
When dividing 8 by 12, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 12

Moving on to step 2:
The number 12 fits into 86 7 times, leaving a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 84 away from 86, we end up with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 12

Moving on to step 3:
12 goes into 25 2 times with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
The remainder is 1 after subtracting 24 from 25.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 12

Step 4:
12 can be fit into 11 0 times, resulting in a remainder of 11.
The next digit of our result is 0. 
Result so far: 720.0
The remainder is 11 after subtracting 0 from 11.
Bring next digit (1) of the dividend behind the 11 and repeat the process: 111 / 12

Let's proceed to step 5:
If we divide 111 by 12, we get 9 and a remainder of 3.
The next digit of our result is 9. 
Result so far: 7209.0
Subtract 108 from 111 to get 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 12

Moving on to step 6:
30 divided by 12 is 2 with a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 72092.0
The remainder is 6 after subtracting 24 from 30.
Fetch the next digit (9) from the dividend, attach it to 6 and continue: 69 / 12

Advancing to step 7:
When dividing 69 by 12, we get 5 with a remainder of 9.
Write down 5 as next digit of the result. 
Result so far: 720925.0
If we take 60 away from 69, we end up with 9.
Append the next digit (2) from the dividend to 9 and continue with: 92 / 12

Moving on to step 8:
The number 12 fits into 92 7 times, leaving a remainder of 8.
The next digit of our result is 7. 
Result so far: 7209257.0
Subtract 84 from 92 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 9:
When dividing 80 by 12, we get 6 with a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 7209257.6
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
12 can be fit into 80 6 times, resulting in a remainder of 8.
The next digit of our result is 6. 
Result so far: 7209257.66
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 7209257.66 with a remainder of 0.008.