89510086 divided by 12 
Our goal is to divide 89510086 by 12.

On to step 1:
The number 12 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 12

Let's proceed to step 2:
The number 12 fits into 89 7 times, leaving a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 84 from 89, we get 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 12

Step 3:
The number 12 fits into 55 4 times, leaving a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 74.0
If we take 48 away from 55, we end up with 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 12

Step 4:
The number 12 fits into 71 5 times, leaving a remainder of 11.
The number 5 becomes the next digit in our result. 
Result so far: 745.0
The remainder is 11 after subtracting 60 from 71.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 12

Step 5:
When dividing 110 by 12, we get 9 with a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 7459.0
Subtracting 108 from 110 leaves us with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 12

Step 6:
The number 12 fits into 20 1 times, leaving a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 74591.0
If we take 12 away from 20, we end up with 8.
Bring next digit (8) of the dividend behind the 8 and repeat the process: 88 / 12

Going ahead to step 7:
12 can be fit into 88 7 times, resulting in a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 745917.0
If we take 84 away from 88, we end up with 4.
Append the next digit (6) from the dividend to 4 and continue with: 46 / 12

Moving on to step 8:
46 divided by 12 is 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 7459173.0
The remainder is 10 after subtracting 36 from 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
If we divide 100 by 12, we get 8 and a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 7459173.8
Subtract 96 from 100 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
When dividing 40 by 12, we get 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 7459173.83
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 11:
When dividing 40 by 12, we get 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 7459173.833
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

In conclusion, the division gives 7459173.833 with a balance of 0.0004.