897099 ÷ 9 
The aim is to understand the frequency of 9 in 897099.

Advancing to step 1:
9 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 9

Moving on to step 2:
If we divide 89 by 9, we get 9 and a remainder of 8.
The next digit of our result is 9. 
Result so far: 9.0
If we subtract 81 from 89, we get 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 9

Advancing to step 3:
9 goes into 87 9 times with a remainder of 6.
The next digit of our result is 9. 
Result so far: 99.0
Deduct 81 from 87 and we're left with 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 9

Going ahead to step 4:
9 can be fit into 60 6 times, resulting in a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 996.0
Deduct 54 from 60 and we're left with 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 9

Going ahead to step 5:
9 goes into 69 7 times with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 9967.0
Subtracting 63 from 69 leaves us with 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 9

Going ahead to step 6:
When dividing 69 by 9, we get 7 with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 99677.0
Subtracting 63 from 69 leaves us 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.

Let's proceed to step 7:
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: 99677.6
If we subtract 54 from 60, 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.

Going ahead to step 8:
The number 9 fits into 60 6 times, leaving a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 99677.66
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.

After the division, we end up with 99677.66 and a remainder of 0.006.