23218 ÷ 15 
The aim is to understand the frequency of 15 in 23218.

On to step 1:
When dividing 2 by 15, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 15

Advancing to step 2:
15 goes into 23 1 times with a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 15 away from 23, we end up with 8.
Take the next digit (2) from the dividend and append it to 8, then repeat: 82 / 15

Moving on to step 3:
When dividing 82 by 15, we get 5 with a remainder of 7.
The next digit of our result is 5. 
Result so far: 15.0
Subtract 75 from 82 to get 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 15

Let's proceed to step 4:
71 divided by 15 is 4 with a remainder of 11.
Record the quotient 4 as the next digit in the result. 
Result so far: 154.0
If we subtract 60 from 71, we get 11.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 15

Advancing to step 5:
15 can be fit into 118 7 times, resulting in a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 1547.0
If we take 105 away from 118, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 6:
130 divided by 15 is 8 with a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 1547.8
Subtracting 120 from 130 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
100 divided by 15 is 6 with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 1547.86
Subtract 90 from 100 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 8:
The number 15 fits into 100 6 times, leaving a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 1547.866
If we subtract 90 from 100, we 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.

The quotient of the division is 1547.866, and the remainder is 0.001.