We're dividing 100308 by 12 
The aim is to understand the frequency of 12 in 100308.

Step 1:
When dividing 1 by 12, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 12

Advancing to step 2:
10 divided by 12 is 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 10, we end up with 10.
Take the next digit (0) from the dividend and append it to 10, then repeat: 100 / 12

On to step 3:
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: 8.0
Deduct 96 from 100 and we're left with 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 12

Advancing to step 4:
The number 12 fits into 43 3 times, leaving a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 83.0
If we subtract 36 from 43, we get 7.
Include the next digit (0) from the dividend after 7, then repeat: 70 / 12

Going ahead to step 5:
12 can be fit into 70 5 times, resulting in a remainder of 10.
The next digit of our result is 5. 
Result so far: 835.0
The remainder is 10 after subtracting 60 from 70.
Take the next digit (8) from the dividend and append it to 10, then repeat: 108 / 12

Let's proceed to step 6:
12 goes into 108 9 times with a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 8359.0
If we subtract 108 from 108, we 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.

Moving on to step 7:
The number 12 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 8359.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
12 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 8359.0
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.

After the division, we end up with 8359.0 and a remainder of 0.0.