Let's divide 286659 by 9
The aim is to understand the frequency of 9 in 286659.

Advancing to step 1:
2 divided by 9 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 9

Going ahead to step 2:
9 goes into 28 3 times with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 27 from 28 to get 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 9

Step 3:
16 divided by 9 is 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 31.0
If we take 9 away from 16, we end up with 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 9

Advancing to step 4:
9 can be fit into 76 8 times, resulting in a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 318.0
The remainder is 4 after subtracting 72 from 76.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 9

Going ahead to step 5:
45 divided by 9 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 3185.0
Deduct 45 from 45 and we're left with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 9

Going ahead to step 6:
9 goes into 9 1 times with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 31851.0
Deduct 9 from 9 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 7:
If we divide 0 by 9, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 31851.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
If we divide 0 by 9, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 31851.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 31851.0, with a leftover of 0.0.