We divide 150475 by 9
The aim is to understand the frequency of 9 in 150475.

On to step 1:
9 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 9

Step 2:
9 goes into 15 1 times with a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 6 after subtracting 9 from 15.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 9

Step 3:
9 can be fit into 60 6 times, resulting in a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
Subtract 54 from 60 to get 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 9

Moving on to step 4:
9 goes into 64 7 times with a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 167.0
The remainder is 1 after subtracting 63 from 64.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 9

Going ahead to step 5:
The number 9 fits into 17 1 times, leaving a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 1671.0
If we take 9 away from 17, we end up with 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 9

Let's proceed to step 6:
9 can be fit into 85 9 times, resulting in a remainder of 4.
The next digit of our result is 9. 
Result so far: 16719.0
Deduct 81 from 85 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.

Going ahead to step 7:
The number 9 fits into 40 4 times, leaving a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 16719.4
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
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: 16719.44
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 16719.44 and a remainder of 0.004.