Let's divide 661285 by 9
The aim is to understand the frequency of 9 in 661285.

Let's proceed to step 1:
6 divided by 9 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 9

Step 2:
66 divided by 9 is 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we take 63 away from 66, we end up with 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 9

Going ahead to step 3:
31 divided by 9 is 3 with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 73.0
Subtracting 27 from 31 leaves us with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 9

Moving on to step 4:
9 can be fit into 42 4 times, resulting in a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 734.0
Deduct 36 from 42 and we're left with 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 9

Let's proceed to step 5:
9 can be fit into 68 7 times, resulting in a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 7347.0
If we subtract 63 from 68, we get 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 9

On to step 6:
9 goes into 55 6 times with a remainder of 1.
The next digit of our result is 6. 
Result so far: 73476.0
If we take 54 away from 55, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
9 can be fit into 10 1 times, resulting in a remainder of 1.
The next digit of our result is 1. 
Result so far: 73476.1
The remainder is 1 after subtracting 9 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 8:
9 can be fit into 10 1 times, resulting in a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 73476.11
Subtracting 9 from 10 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

After the division, we end up with 73476.11 and a remainder of 0.001.