867589 ÷ 42 
Our goal is to divide 867589 by 42.

Advancing to step 1:
When dividing 8 by 42, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 42

On to step 2:
86 divided by 42 is 2 with a remainder of 2.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 84 from 86, we get 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 42

Step 3:
If we divide 27 by 42, we get 0 and a remainder of 27.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
If we take 0 away from 27, we end up with 27.
Include the next digit (5) from the dividend after 27, then repeat: 275 / 42

Going ahead to step 4:
The number 42 fits into 275 6 times, leaving a remainder of 23.
The number 6 becomes the next digit in our result. 
Result so far: 206.0
Subtract 252 from 275 to get 23.
Include the next digit (8) from the dividend after 23, then repeat: 238 / 42

On to step 5:
The number 42 fits into 238 5 times, leaving a remainder of 28.
Use 5 as the next digit of our solution. 
Result so far: 2065.0
If we subtract 210 from 238, we get 28.
Include the next digit (9) from the dividend after 28, then repeat: 289 / 42

Step 6:
If we divide 289 by 42, we get 6 and a remainder of 37.
The number 6 becomes the next digit in our result. 
Result so far: 20656.0
Subtract 252 from 289 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.

Advancing to step 7:
42 can be fit into 370 8 times, resulting in a remainder of 34.
Put 8 as the next digit of the answer. 
Result so far: 20656.8
The remainder is 34 after subtracting 336 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 8:
42 can be fit into 340 8 times, resulting in a remainder of 4.
The next digit of our result is 8. 
Result so far: 20656.88
If we take 336 away from 340, we end up 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 outcome is 20656.88, with a leftover of 0.004.