908236 divided by 18 
The aim is to understand the frequency of 18 in 908236.

Step 1:
18 can be fit into 9 0 times, resulting in a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 18

Moving on to step 2:
The number 18 fits into 90 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 0 after subtracting 90 from 90.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 18

On to step 3:
18 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 50.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (2) from the dividend and append it to 8, then repeat: 82 / 18

Advancing to step 4:
If we divide 82 by 18, we get 4 and a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 504.0
The remainder is 10 after subtracting 72 from 82.
Include the next digit (3) from the dividend after 10, then repeat: 103 / 18

Let's proceed to step 5:
When dividing 103 by 18, we get 5 with a remainder of 13.
The next digit of our result is 5. 
Result so far: 5045.0
Subtract 90 from 103 to get 13.
Fetch the next digit (6) from the dividend, attach it to 13 and continue: 136 / 18

Advancing to step 6:
136 divided by 18 is 7 with a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 50457.0
If we take 126 away from 136, 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.

Step 7:
If we divide 100 by 18, we get 5 and a remainder of 10.
The next digit of our result is 5. 
Result so far: 50457.5
Subtract 90 from 100 to get 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:
The number 18 fits into 100 5 times, leaving a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 50457.55
If we subtract 90 from 100, we get 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 outcome is 50457.55, with a leftover of 0.01.