We're dividing 16871 by 86 
We're looking to find how many times 86 goes into 16871.

Step 1:
When dividing 1 by 86, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 86

Step 2:
The number 86 fits into 16 0 times, leaving a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 16 to get 16.
Include the next digit (8) from the dividend after 16, then repeat: 168 / 86

Going ahead to step 3:
If we divide 168 by 86, we get 1 and a remainder of 82.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 86 away from 168, we end up with 82.
Take the next digit (7) from the dividend and append it to 82, then repeat: 827 / 86

Step 4:
If we divide 827 by 86, we get 9 and a remainder of 53.
The next digit of our result is 9. 
Result so far: 19.0
Subtracting 774 from 827 leaves us with 53.
Fetch the next digit (1) from the dividend, attach it to 53 and continue: 531 / 86

Advancing to step 5:
86 can be fit into 531 6 times, resulting in a remainder of 15.
Record the quotient 6 as the next digit in the result. 
Result so far: 196.0
If we subtract 516 from 531, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 6:
86 goes into 150 1 times with a remainder of 64.
Record the quotient 1 as the next digit in the result. 
Result so far: 196.1
Subtract 86 from 150 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 7:
The number 86 fits into 640 7 times, leaving a remainder of 38.
Write down 7 as next digit of the result. 
Result so far: 196.17
Deduct 602 from 640 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 8:
86 can be fit into 380 4 times, resulting in a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 196.174
If we take 344 away from 380, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 9:
86 can be fit into 360 4 times, resulting in a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 196.1744
If we subtract 344 from 360, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 196.1744 and a remainder of 0.00016.