We look at the division of 491715 by 42 
Our goal is to divide 491715 by 42.

Advancing to step 1:
4 divided by 42 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (9) from the dividend and append it to 4, then repeat: 49 / 42

On to step 2:
The number 42 fits into 49 1 times, leaving a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 42 away from 49, we end up with 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 42

Let's proceed to step 3:
42 goes into 71 1 times with a remainder of 29.
Use 1 as the next digit of our solution. 
Result so far: 11.0
The remainder is 29 after subtracting 42 from 71.
Grab the next digit (7) from the dividend, add it to 29, then carry on: 297 / 42

Advancing to step 4:
42 can be fit into 297 7 times, resulting in a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 117.0
Subtracting 294 from 297 leaves us with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 42

Going ahead to step 5:
If we divide 31 by 42, we get 0 and a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 1170.0
Deduct 0 from 31 and we're left with 31.
Append the next digit (5) from the dividend to 31 and continue with: 315 / 42

Step 6:
When dividing 315 by 42, we get 7 with a remainder of 21.
Use 7 as the next digit of our solution. 
Result so far: 11707.0
Subtracting 294 from 315 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 7:
If we divide 210 by 42, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 11707.5
If we take 210 away from 210, we end up 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.

Moving on to step 8:
If we divide 0 by 42, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 11707.5
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.

Step 9:
If we divide 0 by 42, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 11707.5
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.

The final outcome is 11707.5, with a leftover of 0.0.