We look at the division of 935335 by 18 
The aim is to understand the frequency of 18 in 935335.

Going ahead to step 1:
9 divided by 18 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 18

Moving on to step 2:
18 can be fit into 93 5 times, resulting in a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtract 90 from 93 to get 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 18

Going ahead to step 3:
18 goes into 35 1 times with a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 51.0
Subtract 18 from 35 to get 17.
Take the next digit (3) from the dividend and append it to 17, then repeat: 173 / 18

Advancing to step 4:
If we divide 173 by 18, we get 9 and a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 519.0
If we subtract 162 from 173, we get 11.
Bring next digit (3) of the dividend behind the 11 and repeat the process: 113 / 18

Moving on to step 5:
If we divide 113 by 18, we get 6 and a remainder of 5.
Use 6 as the next digit of our solution. 
Result so far: 5196.0
If we take 108 away from 113, we end up with 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 18

Let's proceed to step 6:
When dividing 55 by 18, we get 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 51963.0
The remainder is 1 after subtracting 54 from 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
10 divided by 18 is 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 51963.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
18 goes into 100 5 times with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 51963.05
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
When dividing 100 by 18, we get 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 51963.055
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 51963.055 with a remainder of 0.001.