We divide 99747210 by 12
The aim is to understand the frequency of 12 in 99747210.

Step 1:
When dividing 9 by 12, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 12

Let's proceed to step 2:
99 divided by 12 is 8 with a remainder of 3.
Write down 8 as next digit of the result. 
Result so far: 8.0
Deduct 96 from 99 and we're left with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 12

Moving on to step 3:
If we divide 37 by 12, we get 3 and a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 83.0
If we take 36 away from 37, we end up with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 12

Step 4:
12 goes into 14 1 times with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 831.0
The remainder is 2 after subtracting 12 from 14.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 12

Step 5:
27 divided by 12 is 2 with a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 8312.0
The remainder is 3 after subtracting 24 from 27.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 12

On to step 6:
When dividing 32 by 12, we get 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 83122.0
Deduct 24 from 32 and we're left with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 12

Going ahead to step 7:
81 divided by 12 is 6 with a remainder of 9.
Write down 6 as next digit of the result. 
Result so far: 831226.0
If we take 72 away from 81, we end up with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 12

Going ahead to step 8:
90 divided by 12 is 7 with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 8312267.0
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 9:
12 goes into 60 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 8312267.5
The remainder is 0 after subtracting 60 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
0 divided by 12 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8312267.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 11:
If we divide 0 by 12, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 8312267.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 8312267.5, and the remainder is 0.0.