We're dividing 485099 by 9 
The aim is to understand the frequency of 9 in 485099.

Step 1:
4 divided by 9 is 0 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.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 9

Going ahead to step 2:
The number 9 fits into 48 5 times, leaving a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtract 45 from 48 to get 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 9

Advancing to step 3:
9 goes into 35 3 times with a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 53.0
If we take 27 away from 35, we end up with 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 9

Going ahead to step 4:
9 can be fit into 80 8 times, resulting in a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 538.0
If we subtract 72 from 80, we get 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 9

On to step 5:
89 divided by 9 is 9 with a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 5389.0
If we take 81 away from 89, we end up with 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 9

Going ahead to step 6:
When dividing 89 by 9, we get 9 with a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 53899.0
Subtract 81 from 89 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.

On to step 7:
9 goes into 80 8 times with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 53899.8
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.

On to step 8:
80 divided by 9 is 8 with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 53899.88
If we subtract 72 from 80, we 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.

After the division, we end up with 53899.88 and a remainder of 0.008.