871421 ÷ 17 
We want to divide 871421 by 17.

Going ahead to step 1:
17 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 17

Let's proceed to step 2:
The number 17 fits into 87 5 times, leaving a remainder of 2.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 85 from 87 to get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 17

Advancing to step 3:
17 can be fit into 21 1 times, resulting in a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 51.0
The remainder is 4 after subtracting 17 from 21.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 17

Advancing to step 4:
If we divide 44 by 17, we get 2 and a remainder of 10.
The next digit of our result is 2. 
Result so far: 512.0
Deduct 34 from 44 and we're left with 10.
Take the next digit (2) from the dividend and append it to 10, then repeat: 102 / 17

Step 5:
The number 17 fits into 102 6 times, leaving a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 5126.0
Subtract 102 from 102 to get 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 17

Moving on to step 6:
17 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 51260.0
Deduct 0 from 1 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
The number 17 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 51260.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
17 goes into 100 5 times with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 51260.05
If we take 85 away from 100, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
150 divided by 17 is 8 with a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 51260.058
The remainder is 14 after subtracting 136 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 10:
The number 17 fits into 140 8 times, leaving a remainder of 4.
The next digit of our result is 8. 
Result so far: 51260.0588
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.

The final result is 51260.0588 with a remainder of 4e-05.