Let's divide 859800 by 9
The aim is to understand the frequency of 9 in 859800.

Step 1:
The number 9 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 9

Advancing to step 2:
If we divide 85 by 9, we get 9 and a remainder of 4.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtracting 81 from 85 leaves us with 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 9

Advancing to step 3:
9 can be fit into 49 5 times, resulting in a remainder of 4.
The next digit of our result is 5. 
Result so far: 95.0
If we take 45 away from 49, we end up with 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 9

On to step 4:
The number 9 fits into 48 5 times, leaving a remainder of 3.
Write down 5 as next digit of the result. 
Result so far: 955.0
If we take 45 away from 48, we end up with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 9

Going ahead to step 5:
9 goes into 30 3 times with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 9553.0
Deduct 27 from 30 and we're left with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 9

Let's proceed to step 6:
9 can be fit into 30 3 times, resulting in a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 95533.0
If we subtract 27 from 30, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
When dividing 30 by 9, we get 3 with a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 95533.3
The remainder is 3 after subtracting 27 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 8:
The number 9 fits into 30 3 times, leaving a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 95533.33
The remainder is 3 after subtracting 27 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final result is 95533.33 with a remainder of 0.003.