We're dividing 1212 by 15 
The aim is to understand the frequency of 15 in 1212.

Going ahead to step 1:
15 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 15

Let's proceed to step 2:
15 goes into 12 0 times with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Take the next digit (1) from the dividend and append it to 12, then repeat: 121 / 15

On to step 3:
The number 15 fits into 121 8 times, leaving a remainder of 1.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 120 from 121, we get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 15

Let's proceed to step 4:
When dividing 12 by 15, we get 0 with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 80.0
Deduct 0 from 12 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 5:
When dividing 120 by 15, we get 8 with a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 80.8
Deduct 120 from 120 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 6:
The number 15 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 80.8
Subtracting 0 from 0 leaves us 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.

Moving on to step 7:
The number 15 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 80.8
Subtracting 0 from 0 leaves us 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.

The quotient of the division is 80.8, and the remainder is 0.0.