We look at the division of 163750 by 9 
The aim is to understand the frequency of 9 in 163750.

Advancing to step 1:
The number 9 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 9

Going ahead to step 2:
16 divided by 9 is 1 with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 9 from 16 and we're left with 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 9

Going ahead to step 3:
9 goes into 73 8 times with a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
Subtract 72 from 73 to get 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 9

Going ahead to step 4:
9 goes into 17 1 times with a remainder of 8.
The next digit of our result is 1. 
Result so far: 181.0
Deduct 9 from 17 and we're left with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 9

Let's proceed to step 5:
9 can be fit into 85 9 times, resulting in a remainder of 4.
Put 9 as the next digit of the answer. 
Result so far: 1819.0
Subtracting 81 from 85 leaves us with 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 9

Let's proceed to step 6:
9 goes into 40 4 times with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 18194.0
The remainder is 4 after subtracting 36 from 40.
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 7:
9 goes into 40 4 times with a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 18194.4
If we take 36 away from 40, we end up 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.

Advancing to step 8:
9 can be fit into 40 4 times, resulting in a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 18194.44
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.

Our division results in 18194.44 with a remaining 0.004.