We look at the division of 498660 by 9 
The aim is to understand the frequency of 9 in 498660.

Moving on to step 1:
9 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 9

Moving on to step 2:
If we divide 49 by 9, we get 5 and a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 4 after subtracting 45 from 49.
Include the next digit (8) from the dividend after 4, then repeat: 48 / 9

On to step 3:
9 goes into 48 5 times with a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 55.0
The remainder is 3 after subtracting 45 from 48.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 9

Going ahead to step 4:
When dividing 36 by 9, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 554.0
The remainder is 0 after subtracting 36 from 36.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 9

Step 5:
When dividing 6 by 9, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 5540.0
Subtract 0 from 6 to get 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 9

Step 6:
When dividing 60 by 9, we get 6 with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 55406.0
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.

On to step 7:
When dividing 60 by 9, we get 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 55406.6
The remainder is 6 after subtracting 54 from 60.
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 8:
When dividing 60 by 9, we get 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 55406.66
If we subtract 54 from 60, we get 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 55406.66, with a leftover of 0.006.