We divide 28364728 by 9
The aim is to understand the frequency of 9 in 28364728.

On to step 1:
9 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 9

Advancing to step 2:
When dividing 28 by 9, we get 3 with a remainder of 1.
The next digit of our result is 3. 
Result so far: 3.0
If we take 27 away from 28, we end up with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 9

Let's proceed to step 3:
9 goes into 13 1 times with a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 31.0
Subtract 9 from 13 to get 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 9

Let's proceed to step 4:
If we divide 46 by 9, we get 5 and a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 315.0
If we take 45 away from 46, we end up with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 9

Let's proceed to step 5:
14 divided by 9 is 1 with a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 3151.0
Deduct 9 from 14 and we're left with 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 9

Advancing to step 6:
The number 9 fits into 57 6 times, leaving a remainder of 3.
The next digit of our result is 6. 
Result so far: 31516.0
Deduct 54 from 57 and we're left with 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 9

Step 7:
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: 315163.0
Subtracting 27 from 32 leaves us with 5.
Append the next digit (8) from the dividend to 5 and continue with: 58 / 9

Going ahead to step 8:
When dividing 58 by 9, we get 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 3151636.0
Subtracting 54 from 58 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
If we divide 40 by 9, we get 4 and a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 3151636.4
Subtracting 36 from 40 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
The number 9 fits into 40 4 times, leaving a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 3151636.44
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 3151636.44, with a leftover of 0.004.