We look at the division of 35068 by 18 
The aim is to understand the frequency of 18 in 35068.

Advancing to step 1:
18 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 18

Advancing to step 2:
When dividing 35 by 18, we get 1 with a remainder of 17.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 18 from 35, we get 17.
Grab the next digit (0) from the dividend, add it to 17, then carry on: 170 / 18

Step 3:
The number 18 fits into 170 9 times, leaving a remainder of 8.
The next digit of our result is 9. 
Result so far: 19.0
Subtract 162 from 170 to get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 18

Going ahead to step 4:
18 goes into 86 4 times with a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 194.0
Deduct 72 from 86 and we're left with 14.
Fetch the next digit (8) from the dividend, attach it to 14 and continue: 148 / 18

Advancing to step 5:
The number 18 fits into 148 8 times, leaving a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 1948.0
Subtract 144 from 148 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.

Going ahead to step 6:
The number 18 fits into 40 2 times, leaving a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 1948.2
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.

On to step 7:
The number 18 fits into 40 2 times, leaving a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 1948.22
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 result is 1948.22 with a remainder of 0.004.