620931 ÷ 9 
The aim is to understand the frequency of 9 in 620931.

Moving on to step 1:
9 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (2) from the dividend and append it to 6, then repeat: 62 / 9

Let's proceed to step 2:
62 divided by 9 is 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 54 from 62 and we're left with 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 9

Let's proceed to step 3:
When dividing 80 by 9, we get 8 with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 68.0
Subtracting 72 from 80 leaves us with 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 9

On to step 4:
If we divide 89 by 9, we get 9 and a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 689.0
Subtracting 81 from 89 leaves us with 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 9

Moving on to step 5:
9 can be fit into 83 9 times, resulting in a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 6899.0
Subtract 81 from 83 to get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 9

Step 6:
When dividing 21 by 9, we get 2 with a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 68992.0
If we take 18 away from 21, 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.

Let's proceed to step 7:
The number 9 fits into 30 3 times, leaving a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 68992.3
Subtracting 27 from 30 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.

Moving on to step 8:
9 can be fit into 30 3 times, resulting in a remainder of 3.
The next digit of our result is 3. 
Result so far: 68992.33
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 68992.33 and a remainder of 0.003.