402448 ÷ 17 
The aim is to understand the frequency of 17 in 402448.

Advancing to step 1:
The number 17 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 17

Step 2:
17 can be fit into 40 2 times, resulting in a remainder of 6.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 34 from 40 to get 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 17

On to step 3:
62 divided by 17 is 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
The remainder is 11 after subtracting 51 from 62.
Take the next digit (4) from the dividend and append it to 11, then repeat: 114 / 17

Going ahead to step 4:
If we divide 114 by 17, we get 6 and a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 236.0
Subtracting 102 from 114 leaves us with 12.
Include the next digit (4) from the dividend after 12, then repeat: 124 / 17

Moving on to step 5:
When dividing 124 by 17, we get 7 with a remainder of 5.
The next digit of our result is 7. 
Result so far: 2367.0
If we take 119 away from 124, we end up with 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 17

Step 6:
The number 17 fits into 58 3 times, leaving a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 23673.0
Subtracting 51 from 58 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 7:
If we divide 70 by 17, we get 4 and a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 23673.4
Subtracting 68 from 70 leaves us 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 8:
When dividing 20 by 17, we get 1 with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 23673.41
Subtracting 17 from 20 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 9:
17 goes into 30 1 times with a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 23673.411
If we subtract 17 from 30, we get 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 23673.411 with a remaining 0.0013.