902616 ÷ 9 
The aim is to understand the frequency of 9 in 902616.

On to step 1:
9 goes into 9 1 times with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 9 away from 9, we end up with 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 9

On to step 2:
The number 9 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtracting 0 from 0 leaves us with 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 9

Let's proceed to step 3:
The number 9 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 100.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 9

Step 4:
9 can be fit into 26 2 times, resulting in a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 1002.0
If we subtract 18 from 26, we get 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 9

Step 5:
9 goes into 81 9 times with a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 10029.0
Subtract 81 from 81 to get 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 9

Advancing to step 6:
When dividing 6 by 9, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 100290.0
Subtracting 0 from 6 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
9 can be fit into 60 6 times, resulting in a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 100290.6
Subtracting 54 from 60 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 8:
If we divide 60 by 9, we get 6 and a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 100290.66
If we take 54 away from 60, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

After the division, we end up with 100290.66 and a remainder of 0.006.