We look at the division of 11200 by 12 
The aim is to understand the frequency of 12 in 11200.

On to step 1:
The number 12 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 12

On to step 2:
12 can be fit into 11 0 times, resulting in a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 11, we end up with 11.
Take the next digit (2) from the dividend and append it to 11, then repeat: 112 / 12

Advancing to step 3:
12 goes into 112 9 times with a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we subtract 108 from 112, we get 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 12

Let's proceed to step 4:
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: 93.0
If we subtract 36 from 40, we get 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 12

On to step 5:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 933.0
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.

On to step 6:
12 goes into 40 3 times with a remainder of 4.
The next digit of our result is 3. 
Result so far: 933.3
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.

Advancing to step 7:
If we divide 40 by 12, we get 3 and a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 933.33
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.

The final outcome is 933.33, with a leftover of 0.004.