We're dividing 536310 by 18 
The aim is to understand the frequency of 18 in 536310.

Advancing to step 1:
When dividing 5 by 18, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 18

Going ahead to step 2:
If we divide 53 by 18, we get 2 and a remainder of 17.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 36 from 53 and we're left with 17.
Grab the next digit (6) from the dividend, add it to 17, then carry on: 176 / 18

Going ahead to step 3:
176 divided by 18 is 9 with a remainder of 14.
Write down 9 as next digit of the result. 
Result so far: 29.0
Subtract 162 from 176 to get 14.
Grab the next digit (3) from the dividend, add it to 14, then carry on: 143 / 18

Going ahead to step 4:
If we divide 143 by 18, we get 7 and a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 297.0
If we take 126 away from 143, we end up with 17.
Fetch the next digit (1) from the dividend, attach it to 17 and continue: 171 / 18

Going ahead to step 5:
When dividing 171 by 18, we get 9 with a remainder of 9.
The next digit of our result is 9. 
Result so far: 2979.0
If we take 162 away from 171, we end up with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 18

Moving on to step 6:
When dividing 90 by 18, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 29795.0
Deduct 90 from 90 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 7:
18 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 29795.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
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: 29795.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 29795.0 with a remainder of 0.0.