Let's divide 712569 by 9
The aim is to understand the frequency of 9 in 712569.

Advancing to step 1:
9 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 9

Moving on to step 2:
9 can be fit into 71 7 times, resulting in a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 7.0
The remainder is 8 after subtracting 63 from 71.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 9

On to step 3:
If we divide 82 by 9, we get 9 and a remainder of 1.
The next digit of our result is 9. 
Result so far: 79.0
If we take 81 away from 82, we end up with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 9

Let's proceed to step 4:
9 can be fit into 15 1 times, resulting in a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 791.0
Deduct 9 from 15 and we're left with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 9

Let's proceed to step 5:
The number 9 fits into 66 7 times, leaving a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 7917.0
Deduct 63 from 66 and we're left with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 9

Advancing to step 6:
When dividing 39 by 9, we get 4 with a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 79174.0
If we take 36 away from 39, 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.

Step 7:
When dividing 30 by 9, we get 3 with a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 79174.3
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.

Step 8:
30 divided by 9 is 3 with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 79174.33
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.

After the division, we end up with 79174.33 and a remainder of 0.003.