We look at the division of 375459 by 42 
We're looking to find how many times 42 goes into 375459.

Moving on to step 1:
42 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 42

Let's proceed to step 2:
When dividing 37 by 42, we get 0 with a remainder of 37.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 37 to get 37.
Bring next digit (5) of the dividend behind the 37 and repeat the process: 375 / 42

Going ahead to step 3:
When dividing 375 by 42, we get 8 with a remainder of 39.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtract 336 from 375 to get 39.
Include the next digit (4) from the dividend after 39, then repeat: 394 / 42

Advancing to step 4:
When dividing 394 by 42, we get 9 with a remainder of 16.
The next digit of our result is 9. 
Result so far: 89.0
Deduct 378 from 394 and we're left with 16.
Append the next digit (5) from the dividend to 16 and continue with: 165 / 42

Advancing to step 5:
When dividing 165 by 42, we get 3 with a remainder of 39.
Use 3 as the next digit of our solution. 
Result so far: 893.0
If we subtract 126 from 165, we get 39.
Append the next digit (9) from the dividend to 39 and continue with: 399 / 42

On to step 6:
42 can be fit into 399 9 times, resulting in a remainder of 21.
Record the quotient 9 as the next digit in the result. 
Result so far: 8939.0
If we subtract 378 from 399, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 7:
210 divided by 42 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 8939.5
Deduct 210 from 210 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.

Let's proceed to step 8:
The number 42 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 8939.5
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:
The number 42 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 8939.5
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 8939.5, with a leftover of 0.0.