We're dividing 371885 by 17 
The aim is to understand the frequency of 17 in 371885.

Going ahead to step 1:
17 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 17

Step 2:
17 goes into 37 2 times with a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 34 away from 37, we end up with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 17

On to step 3:
17 can be fit into 31 1 times, resulting in a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
If we subtract 17 from 31, we get 14.
Include the next digit (8) from the dividend after 14, then repeat: 148 / 17

Advancing to step 4:
17 can be fit into 148 8 times, resulting in a remainder of 12.
The next digit of our result is 8. 
Result so far: 218.0
If we take 136 away from 148, we end up with 12.
Fetch the next digit (8) from the dividend, attach it to 12 and continue: 128 / 17

Step 5:
If we divide 128 by 17, we get 7 and a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 2187.0
Subtracting 119 from 128 leaves us with 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 17

Step 6:
When dividing 95 by 17, we get 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 21875.0
The remainder is 10 after subtracting 85 from 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
The number 17 fits into 100 5 times, leaving a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 21875.5
The remainder is 15 after subtracting 85 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 8:
If we divide 150 by 17, we get 8 and a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 21875.58
Deduct 136 from 150 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 9:
17 can be fit into 140 8 times, resulting in a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 21875.588
Subtracting 136 from 140 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 21875.588 and a remainder of 0.0004.