Let's divide 400448 by 9
The aim is to understand the frequency of 9 in 400448.

Advancing to step 1:
When dividing 4 by 9, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 9

Step 2:
9 can be fit into 40 4 times, resulting in a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 36 from 40 leaves us with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 9

Let's proceed to step 3:
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: 44.0
If we subtract 36 from 40, we get 4.
Take the next digit (4) from the dividend and append it to 4, then repeat: 44 / 9

On to step 4:
The number 9 fits into 44 4 times, leaving a remainder of 8.
The next digit of our result is 4. 
Result so far: 444.0
If we subtract 36 from 44, we get 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 9

Going ahead to step 5:
If we divide 84 by 9, we get 9 and a remainder of 3.
The next digit of our result is 9. 
Result so far: 4449.0
The remainder is 3 after subtracting 81 from 84.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 9

Advancing to step 6:
38 divided by 9 is 4 with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 44494.0
Deduct 36 from 38 and we're left 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.

Going ahead to step 7:
9 goes into 20 2 times with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 44494.2
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:
20 divided by 9 is 2 with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 44494.22
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Our division results in 44494.22 with a remaining 0.002.