836502 divided by 18 
The aim is to understand the frequency of 18 in 836502.

Step 1:
18 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 18

Advancing to step 2:
If we divide 83 by 18, we get 4 and a remainder of 11.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 72 from 83 to get 11.
Take the next digit (6) from the dividend and append it to 11, then repeat: 116 / 18

Step 3:
18 can be fit into 116 6 times, resulting in a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 46.0
The remainder is 8 after subtracting 108 from 116.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 18

On to step 4:
If we divide 85 by 18, we get 4 and a remainder of 13.
Use 4 as the next digit of our solution. 
Result so far: 464.0
Subtract 72 from 85 to get 13.
Grab the next digit (0) from the dividend, add it to 13, then carry on: 130 / 18

Step 5:
130 divided by 18 is 7 with a remainder of 4.
The next digit of our result is 7. 
Result so far: 4647.0
Subtracting 126 from 130 leaves us with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 18

Moving on to step 6:
The number 18 fits into 42 2 times, leaving a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 46472.0
The remainder is 6 after subtracting 36 from 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
60 divided by 18 is 3 with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 46472.3
Subtracting 54 from 60 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
If we divide 60 by 18, we get 3 and a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 46472.33
Deduct 54 from 60 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final outcome is 46472.33, with a leftover of 0.006.