28507767 divided by 9 
The aim is to understand the frequency of 9 in 28507767.

Going ahead to step 1:
When dividing 2 by 9, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 9

On to step 2:
28 divided by 9 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 1 after subtracting 27 from 28.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 9

Step 3:
If we divide 15 by 9, we get 1 and a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 31.0
Deduct 9 from 15 and we're left with 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 9

Step 4:
9 goes into 60 6 times with a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 316.0
If we take 54 away from 60, we end up with 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 9

Advancing to step 5:
The number 9 fits into 67 7 times, leaving a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 3167.0
Subtract 63 from 67 to get 4.
Include the next digit (7) from the dividend after 4, then repeat: 47 / 9

Let's proceed to step 6:
If we divide 47 by 9, we get 5 and a remainder of 2.
The number 5 becomes the next digit in our result. 
Result so far: 31675.0
The remainder is 2 after subtracting 45 from 47.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 9

Going ahead to step 7:
9 goes into 26 2 times with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 316752.0
The remainder is 8 after subtracting 18 from 26.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 9

Let's proceed to step 8:
If we divide 87 by 9, we get 9 and a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 3167529.0
If we take 81 away from 87, 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.

Let's proceed to step 9:
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: 3167529.6
Subtract 54 from 60 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.

Moving on to step 10:
60 divided by 9 is 6 with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 3167529.66
If we subtract 54 from 60, we 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.

After the division, we end up with 3167529.66 and a remainder of 0.006.