We're dividing 548528 by 18 
The aim is to understand the frequency of 18 in 548528.

Moving on to step 1:
The number 18 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 18

Going ahead to step 2:
18 can be fit into 54 3 times, resulting in a remainder of 0.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 0 after subtracting 54 from 54.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 18

Moving on to step 3:
8 divided by 18 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 30.0
If we subtract 0 from 8, we get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 18

Going ahead to step 4:
18 goes into 85 4 times with a remainder of 13.
Use 4 as the next digit of our solution. 
Result so far: 304.0
Subtract 72 from 85 to get 13.
Fetch the next digit (2) from the dividend, attach it to 13 and continue: 132 / 18

Let's proceed to step 5:
132 divided by 18 is 7 with a remainder of 6.
The next digit of our result is 7. 
Result so far: 3047.0
Subtracting 126 from 132 leaves us with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 18

Step 6:
68 divided by 18 is 3 with a remainder of 14.
The number 3 becomes the next digit in our result. 
Result so far: 30473.0
The remainder is 14 after subtracting 54 from 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
When dividing 140 by 18, we get 7 with a remainder of 14.
Put 7 as the next digit of the answer. 
Result so far: 30473.7
The remainder is 14 after subtracting 126 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 8:
The number 18 fits into 140 7 times, leaving a remainder of 14.
Put 7 as the next digit of the answer. 
Result so far: 30473.77
If we subtract 126 from 140, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

In conclusion, the division gives 30473.77 with a balance of 0.014.