We're dividing 871537 by 42 
We want to divide 871537 by 42.

Moving on to step 1:
The number 42 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 42

Going ahead to step 2:
87 divided by 42 is 2 with a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 84 from 87 and we're left with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 42

Let's proceed to step 3:
42 goes into 31 0 times with a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 20.0
Subtracting 0 from 31 leaves us with 31.
Fetch the next digit (5) from the dividend, attach it to 31 and continue: 315 / 42

Let's proceed to step 4:
42 can be fit into 315 7 times, resulting in a remainder of 21.
Use 7 as the next digit of our solution. 
Result so far: 207.0
The remainder is 21 after subtracting 294 from 315.
Bring next digit (3) of the dividend behind the 21 and repeat the process: 213 / 42

Advancing to step 5:
The number 42 fits into 213 5 times, leaving a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 2075.0
If we take 210 away from 213, we end up with 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 42

Let's proceed to step 6:
When dividing 37 by 42, we get 0 with a remainder of 37.
Record the quotient 0 as the next digit in the result. 
Result so far: 20750.0
Subtract 0 from 37 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 7:
42 can be fit into 370 8 times, resulting in a remainder of 34.
Use 8 as the next digit of our solution. 
Result so far: 20750.8
Subtract 336 from 370 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 8:
340 divided by 42 is 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 20750.88
Subtracting 336 from 340 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 20750.88 and a remainder of 0.004.