We divide 605531 by 9
The aim is to understand the frequency of 9 in 605531.

Step 1:
When dividing 6 by 9, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 9

Step 2:
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: 6.0
Deduct 54 from 60 and we're left with 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 9

Let's proceed to step 3:
When dividing 65 by 9, we get 7 with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 67.0
Deduct 63 from 65 and we're left with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 9

Moving on to step 4:
When dividing 25 by 9, we get 2 with a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 672.0
Subtracting 18 from 25 leaves us with 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 9

Advancing to step 5:
The number 9 fits into 73 8 times, leaving a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 6728.0
Subtract 72 from 73 to get 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 9

Let's proceed to step 6:
11 divided by 9 is 1 with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 67281.0
If we subtract 9 from 11, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
9 can be fit into 20 2 times, resulting in a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 67281.2
Subtract 18 from 20 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
If we divide 20 by 9, we get 2 and a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 67281.22
If we subtract 18 from 20, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The quotient of the division is 67281.22, and the remainder is 0.002.