Let's divide 723534 by 9
The aim is to understand the frequency of 9 in 723534.

Moving on to step 1:
The number 9 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 9

Going ahead to step 2:
9 can be fit into 72 8 times, resulting in a remainder of 0.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 72 from 72 leaves us with 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 9

Let's proceed to step 3:
9 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 80.0
If we take 0 away from 3, we end up with 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 9

Moving on to step 4:
When dividing 35 by 9, we get 3 with a remainder of 8.
Write down 3 as next digit of the result. 
Result so far: 803.0
Deduct 27 from 35 and we're left with 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 9

Moving on to step 5:
The number 9 fits into 83 9 times, leaving a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 8039.0
If we take 81 away from 83, we end up with 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 9

Going ahead to step 6:
When dividing 24 by 9, we get 2 with a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 80392.0
The remainder is 6 after subtracting 18 from 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On 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: 80392.6
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.

Advancing to step 8:
When dividing 60 by 9, we get 6 with a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 80392.66
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.

The final outcome is 80392.66, with a leftover of 0.006.