We divide 409381 by 42
We want to figure out the number of times 409381 can be divided by 42.

Moving on to step 1:
When dividing 4 by 42, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 42

On to step 2:
42 goes into 40 0 times with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 40 leaves us with 40.
Include the next digit (9) from the dividend after 40, then repeat: 409 / 42

Going ahead to step 3:
42 goes into 409 9 times with a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 378 away from 409, we end up with 31.
Bring next digit (3) of the dividend behind the 31 and repeat the process: 313 / 42

Advancing to step 4:
When dividing 313 by 42, we get 7 with a remainder of 19.
The next digit of our result is 7. 
Result so far: 97.0
If we take 294 away from 313, we end up with 19.
Grab the next digit (8) from the dividend, add it to 19, then carry on: 198 / 42

Step 5:
42 goes into 198 4 times with a remainder of 30.
Use 4 as the next digit of our solution. 
Result so far: 974.0
Subtract 168 from 198 to get 30.
Include the next digit (1) from the dividend after 30, then repeat: 301 / 42

Moving on to step 6:
The number 42 fits into 301 7 times, leaving a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 9747.0
Subtract 294 from 301 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
70 divided by 42 is 1 with a remainder of 28.
Record the quotient 1 as the next digit in the result. 
Result so far: 9747.1
Deduct 42 from 70 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 8:
42 can be fit into 280 6 times, resulting in a remainder of 28.
Use 6 as the next digit of our solution. 
Result so far: 9747.16
Subtract 252 from 280 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
If we divide 280 by 42, we get 6 and a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 9747.166
Deduct 252 from 280 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The final outcome is 9747.166, with a leftover of 0.0028.