72184 divided by 18 
The aim is to understand the frequency of 18 in 72184.

Moving on to step 1:
7 divided by 18 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 18

On to step 2:
18 goes into 72 4 times with a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 72 from 72, we get 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 18

Advancing to step 3:
The number 18 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 40.0
Subtract 0 from 1 to get 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 18

Let's proceed to step 4:
18 goes into 18 1 times with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 401.0
Subtract 18 from 18 to get 0.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 18

On to step 5:
18 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 4010.0
Subtract 0 from 4 to 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.

Moving on to step 6:
If we divide 40 by 18, we get 2 and a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 4010.2
If we take 36 away from 40, we end up 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.

Let's proceed to step 7:
If we divide 40 by 18, we get 2 and a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 4010.22
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 4010.22, with a leftover of 0.004.