743784 divided by 9 
The aim is to understand the frequency of 9 in 743784.

Going ahead to step 1:
7 divided by 9 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 9

Going ahead to step 2:
9 can be fit into 74 8 times, resulting in a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 72 from 74 leaves us with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 9

Let's proceed to step 3:
If we divide 23 by 9, we get 2 and a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 82.0
Subtract 18 from 23 to get 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 9

Moving on to step 4:
When dividing 57 by 9, we get 6 with a remainder of 3.
Write down 6 as next digit of the result. 
Result so far: 826.0
The remainder is 3 after subtracting 54 from 57.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 9

Let's proceed to step 5:
9 goes into 38 4 times with a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 8264.0
Subtract 36 from 38 to get 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 9

Let's proceed to step 6:
24 divided by 9 is 2 with a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 82642.0
If we take 18 away from 24, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
If we divide 60 by 9, we get 6 and a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 82642.6
The remainder is 6 after subtracting 54 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
When dividing 60 by 9, we get 6 with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 82642.66
Subtract 54 from 60 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

After the division, we end up with 82642.66 and a remainder of 0.006.