Let's divide 109102 by 12
The aim is to understand the frequency of 12 in 109102.

Let's proceed to step 1:
The number 12 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 12

Let's proceed to step 2:
12 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 10 and we're left with 10.
Bring next digit (9) of the dividend behind the 10 and repeat the process: 109 / 12

Let's proceed to step 3:
12 goes into 109 9 times with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 108 from 109 and we're left with 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 12

Moving on to step 4:
When dividing 11 by 12, we get 0 with a remainder of 11.
Put 0 as the next digit of the answer. 
Result so far: 90.0
Subtracting 0 from 11 leaves us with 11.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 12

Moving on to step 5:
When dividing 110 by 12, we get 9 with a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 909.0
Deduct 108 from 110 and we're left with 2.
Grab the next digit (2) from the dividend, add it to 2, then carry on: 22 / 12

Going ahead to step 6:
The number 12 fits into 22 1 times, leaving a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 9091.0
Subtract 12 from 22 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 7:
12 goes into 100 8 times with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 9091.8
Deduct 96 from 100 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.

Moving on to step 8:
When dividing 40 by 12, we get 3 with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 9091.83
If we subtract 36 from 40, we 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 9:
12 goes into 40 3 times with a remainder of 4.
The next digit of our result is 3. 
Result so far: 9091.833
If we subtract 36 from 40, we 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.

After the division, we end up with 9091.833 and a remainder of 0.0004.