We divide 84507 by 9
The aim is to understand the frequency of 9 in 84507.

Step 1:
When dividing 8 by 9, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 9

Step 2:
The number 9 fits into 84 9 times, leaving a remainder of 3.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 81 from 84 and we're left with 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 9

Moving on to step 3:
When dividing 35 by 9, we get 3 with a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 93.0
Subtract 27 from 35 to get 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 9

On to step 4:
80 divided by 9 is 8 with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 938.0
If we take 72 away from 80, we end up with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 9

Going ahead to step 5:
The number 9 fits into 87 9 times, leaving a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 9389.0
The remainder is 6 after subtracting 81 from 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 6:
The number 9 fits into 60 6 times, leaving a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 9389.6
Subtract 54 from 60 to 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.
Record the quotient 6 as the next digit in the result. 
Result so far: 9389.66
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.

After the division, we end up with 9389.66 and a remainder of 0.006.