We're dividing 383943 by 42 
We're looking to find how many times 42 goes into 383943.

Going ahead to step 1:
If we divide 3 by 42, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 42

Let's proceed to step 2:
42 can be fit into 38 0 times, resulting in a remainder of 38.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 38 and we're left with 38.
Take the next digit (3) from the dividend and append it to 38, then repeat: 383 / 42

Advancing to step 3:
42 goes into 383 9 times with a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we take 378 away from 383, we end up with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 42

Advancing to step 4:
The number 42 fits into 59 1 times, leaving a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 91.0
If we take 42 away from 59, we end up with 17.
Grab the next digit (4) from the dividend, add it to 17, then carry on: 174 / 42

Step 5:
42 goes into 174 4 times with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 914.0
Subtract 168 from 174 to get 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 42

Going ahead to step 6:
63 divided by 42 is 1 with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 9141.0
The remainder is 21 after subtracting 42 from 63.
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:
When dividing 210 by 42, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 9141.5
The remainder is 0 after subtracting 210 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 42, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 9141.5
If we take 0 away from 0, 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.

Let's proceed to 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: 9141.5
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 9141.5 with a remainder of 0.0.