We look at the division of 101805 by 9 
The aim is to understand the frequency of 9 in 101805.

Advancing to step 1:
The number 9 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 9

Let's proceed to step 2:
10 divided by 9 is 1 with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 9 from 10, we get 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 9

On to step 3:
11 divided by 9 is 1 with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtract 9 from 11 to get 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 9

Step 4:
When dividing 28 by 9, we get 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 113.0
The remainder is 1 after subtracting 27 from 28.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 9

Advancing to step 5:
When dividing 10 by 9, we get 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1131.0
Subtracting 9 from 10 leaves us with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 9

Moving on to step 6:
When dividing 15 by 9, we get 1 with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 11311.0
If we subtract 9 from 15, 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.

Step 7:
The number 9 fits into 60 6 times, leaving a remainder of 6.
The next digit of our result is 6. 
Result so far: 11311.6
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.

Step 8:
9 can be fit into 60 6 times, resulting in a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 11311.66
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.

After the division, we end up with 11311.66 and a remainder of 0.006.