173172 ÷ 9 
The aim is to understand the frequency of 9 in 173172.

Step 1:
9 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 9

On to step 2:
17 divided by 9 is 1 with a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 8 after subtracting 9 from 17.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 9

Let's proceed to step 3:
9 can be fit into 83 9 times, resulting in a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 19.0
Deduct 81 from 83 and we're left with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 9

Going ahead to step 4:
If we divide 21 by 9, we get 2 and a remainder of 3.
The next digit of our result is 2. 
Result so far: 192.0
Subtracting 18 from 21 leaves us with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 9

On to step 5:
If we divide 37 by 9, we get 4 and a remainder of 1.
The next digit of our result is 4. 
Result so far: 1924.0
Subtract 36 from 37 to get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 9

Advancing to step 6:
When dividing 12 by 9, we get 1 with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 19241.0
The remainder is 3 after subtracting 9 from 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
30 divided by 9 is 3 with a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 19241.3
Subtract 27 from 30 to 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.

Moving on to step 8:
When dividing 30 by 9, we get 3 with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 19241.33
If we take 27 away from 30, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

In conclusion, the division gives 19241.33 with a balance of 0.003.