We look at the division of 273840 by 42 
Let's see how many times 42 fits into 273840.

On to step 1:
When dividing 2 by 42, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 42

Going ahead to step 2:
42 goes into 27 0 times with a remainder of 27.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 27 and we're left with 27.
Fetch the next digit (3) from the dividend, attach it to 27 and continue: 273 / 42

Step 3:
The number 42 fits into 273 6 times, leaving a remainder of 21.
Use 6 as the next digit of our solution. 
Result so far: 6.0
The remainder is 21 after subtracting 252 from 273.
Grab the next digit (8) from the dividend, add it to 21, then carry on: 218 / 42

Moving on to step 4:
42 goes into 218 5 times with a remainder of 8.
Use 5 as the next digit of our solution. 
Result so far: 65.0
Deduct 210 from 218 and we're left with 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 42

Step 5:
42 goes into 84 2 times with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 652.0
Subtracting 84 from 84 leaves us with 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 42

Moving on to step 6:
The number 42 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 6520.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
42 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 6520.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
The number 42 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 6520.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 6520.0 with a remainder of 0.0.