Let's divide 122555 by 17
The aim is to understand the frequency of 17 in 122555.

On to step 1:
1 divided by 17 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 17

Moving on to step 2:
12 divided by 17 is 0 with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Include the next digit (2) from the dividend after 12, then repeat: 122 / 17

Step 3:
17 goes into 122 7 times with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 119 from 122, we get 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 17

Step 4:
When dividing 35 by 17, we get 2 with a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 72.0
Subtract 34 from 35 to get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 17

Moving on to step 5:
The number 17 fits into 15 0 times, leaving a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 720.0
Deduct 0 from 15 and we're left with 15.
Take the next digit (5) from the dividend and append it to 15, then repeat: 155 / 17

Going ahead to step 6:
When dividing 155 by 17, we get 9 with a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 7209.0
Deduct 153 from 155 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
17 can be fit into 20 1 times, resulting in a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 7209.1
If we subtract 17 from 20, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 8:
17 can be fit into 30 1 times, resulting in a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 7209.11
Deduct 17 from 30 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Our division results in 7209.11 with a remaining 0.013.