We're dividing 263874 by 17 
The aim is to understand the frequency of 17 in 263874.

Going ahead to step 1:
The number 17 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 17

Going ahead to step 2:
17 goes into 26 1 times with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 17 from 26 leaves us with 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 17

Step 3:
93 divided by 17 is 5 with a remainder of 8.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtract 85 from 93 to get 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 17

Advancing to step 4:
If we divide 88 by 17, we get 5 and a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 155.0
Subtract 85 from 88 to get 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 17

Going ahead to step 5:
The number 17 fits into 37 2 times, leaving a remainder of 3.
The next digit of our result is 2. 
Result so far: 1552.0
Deduct 34 from 37 and we're left with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 17

Going ahead to step 6:
The number 17 fits into 34 2 times, leaving a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 15522.0
If we subtract 34 from 34, 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 7:
0 divided by 17 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 15522.0
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.

Advancing to step 8:
When dividing 0 by 17, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 15522.0
Deduct 0 from 0 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.

The final result is 15522.0 with a remainder of 0.0.