We divide 669419 by 9
The aim is to understand the frequency of 9 in 669419.

Moving on to step 1:
When dividing 6 by 9, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 9

Step 2:
When dividing 66 by 9, we get 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 7.0
Subtract 63 from 66 to get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 9

Let's proceed to step 3:
If we divide 39 by 9, we get 4 and a remainder of 3.
The number 4 becomes the next digit in our result. 
Result so far: 74.0
Subtract 36 from 39 to get 3.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 9

Step 4:
The number 9 fits into 34 3 times, leaving a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 743.0
Subtract 27 from 34 to get 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 9

Advancing to step 5:
If we divide 71 by 9, we get 7 and a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 7437.0
Deduct 63 from 71 and we're left with 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 9

Advancing to step 6:
9 goes into 89 9 times with a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 74379.0
Subtracting 81 from 89 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 7:
The number 9 fits into 80 8 times, leaving a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 74379.8
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 8:
80 divided by 9 is 8 with a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 74379.88
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 74379.88 with a balance of 0.008.