We're dividing 853469 by 18 
The aim is to understand the frequency of 18 in 853469.

Advancing to step 1:
8 divided by 18 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 18

Advancing to step 2:
18 goes into 85 4 times with a remainder of 13.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 72 from 85 leaves us with 13.
Take the next digit (3) from the dividend and append it to 13, then repeat: 133 / 18

Let's proceed to step 3:
18 can be fit into 133 7 times, resulting in a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
Subtract 126 from 133 to get 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 18

Step 4:
18 can be fit into 74 4 times, resulting in a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 474.0
Subtract 72 from 74 to get 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 18

Advancing to step 5:
18 goes into 26 1 times with a remainder of 8.
The next digit of our result is 1. 
Result so far: 4741.0
If we subtract 18 from 26, we get 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 18

Advancing to step 6:
The number 18 fits into 89 4 times, leaving a remainder of 17.
Use 4 as the next digit of our solution. 
Result so far: 47414.0
The remainder is 17 after subtracting 72 from 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 7:
18 can be fit into 170 9 times, resulting in a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 47414.9
Subtract 162 from 170 to 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.

Step 8:
18 goes into 80 4 times with a remainder of 8.
The next digit of our result is 4. 
Result so far: 47414.94
Subtract 72 from 80 to 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.

Step 9:
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: 47414.944
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.

The final result is 47414.944 with a remainder of 0.0008.