Let's divide 30735735 by 9
The aim is to understand the frequency of 9 in 30735735.

Step 1:
The number 9 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 9

Step 2:
When dividing 30 by 9, we get 3 with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 27 from 30 to get 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 9

Advancing to step 3:
9 goes into 37 4 times with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 34.0
Deduct 36 from 37 and we're left with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 9

Moving on to step 4:
9 can be fit into 13 1 times, resulting in a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 341.0
Subtracting 9 from 13 leaves us with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 9

Advancing to step 5:
9 can be fit into 45 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 3415.0
Subtract 45 from 45 to get 0.
Bring next digit (7) of the dividend behind the 0 and repeat the process: 7 / 9

Advancing to step 6:
If we divide 7 by 9, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 34150.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 9

Let's proceed to step 7:
9 can be fit into 73 8 times, resulting in a remainder of 1.
The number 8 becomes the next digit in our result. 
Result so far: 341508.0
If we subtract 72 from 73, we get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 9

Moving on to step 8:
If we divide 15 by 9, we get 1 and a remainder of 6.
The next digit of our result is 1. 
Result so far: 3415081.0
Subtract 9 from 15 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 9:
9 can be fit into 60 6 times, resulting in a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 3415081.6
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.

Going ahead to step 10:
The number 9 fits into 60 6 times, leaving a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 3415081.66
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.

The final result is 3415081.66 with a remainder of 0.006.