We're dividing 77415 by 9 
The aim is to understand the frequency of 9 in 77415.

On to step 1:
9 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 9

Step 2:
The number 9 fits into 77 8 times, leaving a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 72 from 77, we get 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 9

On to step 3:
54 divided by 9 is 6 with a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 86.0
The remainder is 0 after subtracting 54 from 54.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 9

On to step 4:
9 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 860.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 9

Moving on to step 5:
9 can be fit into 15 1 times, resulting in a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 8601.0
Deduct 9 from 15 and we're left 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 6:
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: 8601.6
Deduct 54 from 60 and we're left 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.

Going ahead to step 7:
9 goes into 60 6 times with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 8601.66
If we take 54 away from 60, 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.

After the division, we end up with 8601.66 and a remainder of 0.006.