We're dividing 202372 by 18 
The aim is to understand the frequency of 18 in 202372.

Going ahead to step 1:
If we divide 2 by 18, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 18

On to step 2:
If we divide 20 by 18, we get 1 and a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 18 from 20 to get 2.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 18

Step 3:
22 divided by 18 is 1 with a remainder of 4.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we subtract 18 from 22, we get 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 18

Step 4:
The number 18 fits into 43 2 times, leaving a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 112.0
Subtract 36 from 43 to get 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 18

Moving on to step 5:
18 goes into 77 4 times with a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 1124.0
If we subtract 72 from 77, we get 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 18

Moving on to step 6:
18 goes into 52 2 times with a remainder of 16.
The next digit of our result is 2. 
Result so far: 11242.0
If we subtract 36 from 52, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 7:
When dividing 160 by 18, we get 8 with a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 11242.8
The remainder is 16 after subtracting 144 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 8:
The number 18 fits into 160 8 times, leaving a remainder of 16.
The next digit of our result is 8. 
Result so far: 11242.88
The remainder is 16 after subtracting 144 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 11242.88 with a balance of 0.016.