539792 divided by 18 
The aim is to understand the frequency of 18 in 539792.

Going ahead to step 1:
18 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 18

Step 2:
18 goes into 53 2 times with a remainder of 17.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 17 after subtracting 36 from 53.
Grab the next digit (9) from the dividend, add it to 17, then carry on: 179 / 18

Let's proceed to step 3:
179 divided by 18 is 9 with a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 29.0
Subtract 162 from 179 to get 17.
Append the next digit (7) from the dividend to 17 and continue with: 177 / 18

On to step 4:
18 can be fit into 177 9 times, resulting in a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 299.0
Deduct 162 from 177 and we're left with 15.
Include the next digit (9) from the dividend after 15, then repeat: 159 / 18

Going ahead to step 5:
18 can be fit into 159 8 times, resulting in a remainder of 15.
The next digit of our result is 8. 
Result so far: 2998.0
Subtract 144 from 159 to get 15.
Grab the next digit (2) from the dividend, add it to 15, then carry on: 152 / 18

Advancing to step 6:
18 goes into 152 8 times with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 29988.0
If we subtract 144 from 152, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 7:
When dividing 80 by 18, we get 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 29988.4
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 8:
If we divide 80 by 18, we get 4 and a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 29988.44
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The quotient of the division is 29988.44, and the remainder is 0.008.