321807 divided by 9 
The aim is to understand the frequency of 9 in 321807.

Moving on to step 1:
9 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 9

Advancing to step 2:
9 can be fit into 32 3 times, resulting in a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 27 away from 32, we end up with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 9

Let's proceed to step 3:
If we divide 51 by 9, we get 5 and a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 35.0
Subtract 45 from 51 to get 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 9

Let's proceed to step 4:
68 divided by 9 is 7 with a remainder of 5.
The next digit of our result is 7. 
Result so far: 357.0
Deduct 63 from 68 and we're left with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 9

Step 5:
If we divide 50 by 9, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 3575.0
Deduct 45 from 50 and we're left with 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 9

Advancing to step 6:
When dividing 57 by 9, we get 6 with a remainder of 3.
Record the quotient 6 as the next digit in the result. 
Result so far: 35756.0
Subtracting 54 from 57 leaves us 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.

Going ahead to step 7:
When dividing 30 by 9, we get 3 with a remainder of 3.
The next digit of our result is 3. 
Result so far: 35756.3
If we subtract 27 from 30, we 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:
30 divided by 9 is 3 with a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 35756.33
Deduct 27 from 30 and we're left 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.

Our division results in 35756.33 with a remaining 0.003.