We're dividing 438253 by 9 
The aim is to understand the frequency of 9 in 438253.

Advancing to step 1:
9 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 9

Step 2:
9 can be fit into 43 4 times, resulting in a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 7 after subtracting 36 from 43.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 9

Step 3:
9 can be fit into 78 8 times, resulting in a remainder of 6.
The next digit of our result is 8. 
Result so far: 48.0
The remainder is 6 after subtracting 72 from 78.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 9

Let's proceed to step 4:
9 can be fit into 62 6 times, resulting in a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 486.0
The remainder is 8 after subtracting 54 from 62.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 9

Going ahead 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: 4869.0
Deduct 81 from 85 and we're left with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 9

Going ahead to step 6:
9 goes into 43 4 times with a remainder of 7.
Use 4 as the next digit of our solution. 
Result so far: 48694.0
Subtract 36 from 43 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
When dividing 70 by 9, we get 7 with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 48694.7
Subtract 63 from 70 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 8:
9 goes into 70 7 times with a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 48694.77
The remainder is 7 after subtracting 63 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Our division results in 48694.77 with a remaining 0.007.