We look at the division of 458435 by 9 
The aim is to understand the frequency of 9 in 458435.

Going ahead to step 1:
The number 9 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 9

Let's proceed to step 2:
9 can be fit into 45 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtract 45 from 45 to get 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 9

Going ahead to step 3:
9 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 50.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 9

Let's proceed to step 4:
84 divided by 9 is 9 with a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 509.0
Subtract 81 from 84 to get 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 9

Step 5:
9 can be fit into 33 3 times, resulting in a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 5093.0
If we subtract 27 from 33, we get 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 9

Going ahead to step 6:
9 goes into 65 7 times with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 50937.0
Subtract 63 from 65 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
If we divide 20 by 9, we get 2 and a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 50937.2
Subtract 18 from 20 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
9 goes into 20 2 times with a remainder of 2.
The next digit of our result is 2. 
Result so far: 50937.22
Subtracting 18 from 20 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

After the division, we end up with 50937.22 and a remainder of 0.002.