609345 divided by 9 
The aim is to understand the frequency of 9 in 609345.

Step 1:
6 divided by 9 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (0) from the dividend and append it to 6, then repeat: 60 / 9

Advancing to step 2:
If we divide 60 by 9, we get 6 and a remainder of 6.
The next digit of our result is 6. 
Result so far: 6.0
The remainder is 6 after subtracting 54 from 60.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 9

On to step 3:
When dividing 69 by 9, we get 7 with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 67.0
Subtract 63 from 69 to get 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 9

Step 4:
When dividing 63 by 9, we get 7 with a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 677.0
Deduct 63 from 63 and we're left with 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 9

Step 5:
When dividing 4 by 9, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 6770.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 9

Advancing to step 6:
The number 9 fits into 45 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 67705.0
The remainder is 0 after subtracting 45 from 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
9 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 67705.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
The number 9 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 67705.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 67705.0 with a remainder of 0.0.