We're dividing 943988 by 9 
The aim is to understand the frequency of 9 in 943988.

Step 1:
The number 9 fits into 9 1 times, leaving a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 9 from 9 leaves us with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 9

On to step 2:
9 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we subtract 0 from 4, we get 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 9

Step 3:
9 can be fit into 43 4 times, resulting in a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 104.0
Deduct 36 from 43 and we're left with 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 9

Step 4:
If we divide 79 by 9, we get 8 and a remainder of 7.
The next digit of our result is 8. 
Result so far: 1048.0
If we subtract 72 from 79, we get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 9

Step 5:
78 divided by 9 is 8 with a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 10488.0
The remainder is 6 after subtracting 72 from 78.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 9

Let's proceed to step 6:
9 can be fit into 68 7 times, resulting in a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 104887.0
Deduct 63 from 68 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 7:
9 can be fit into 50 5 times, resulting in a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 104887.5
Subtracting 45 from 50 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 8:
50 divided by 9 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 104887.55
Subtracting 45 from 50 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 104887.55 and a remainder of 0.005.