22572 divided by 18 
The aim is to understand the frequency of 18 in 22572.

On 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
Deduct 0 from 2 and we're left with 2.
Grab the next digit (2) from the dividend, add it to 2, then carry on: 22 / 18

Going ahead to step 2:
If we divide 22 by 18, we get 1 and a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 18 from 22 leaves us with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 18

Let's proceed to step 3:
45 divided by 18 is 2 with a remainder of 9.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtract 36 from 45 to get 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 18

Moving on to step 4:
18 goes into 97 5 times with a remainder of 7.
Record the quotient 5 as the next digit in the result. 
Result so far: 125.0
If we take 90 away from 97, we end up with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 18

Let's proceed to step 5:
When dividing 72 by 18, we get 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 1254.0
The remainder is 0 after subtracting 72 from 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 6:
0 divided by 18 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1254.0
If we subtract 0 from 0, we get 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 18 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1254.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 1254.0 and a remainder of 0.0.