49943 ÷ 42 
We want to divide 49943 by 42.

Going ahead to step 1:
When dividing 4 by 42, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 42

Step 2:
49 divided by 42 is 1 with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 42 from 49 and we're left with 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 42

On to step 3:
79 divided by 42 is 1 with a remainder of 37.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we take 42 away from 79, we end up with 37.
Fetch the next digit (4) from the dividend, attach it to 37 and continue: 374 / 42

On to step 4:
The number 42 fits into 374 8 times, leaving a remainder of 38.
Record the quotient 8 as the next digit in the result. 
Result so far: 118.0
Deduct 336 from 374 and we're left with 38.
Fetch the next digit (3) from the dividend, attach it to 38 and continue: 383 / 42

Going ahead to step 5:
383 divided by 42 is 9 with a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 1189.0
Deduct 378 from 383 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 6:
42 can be fit into 50 1 times, resulting in a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 1189.1
If we take 42 away from 50, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 7:
42 can be fit into 80 1 times, resulting in a remainder of 38.
Write down 1 as next digit of the result. 
Result so far: 1189.11
Deduct 42 from 80 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Our division results in 1189.11 with a remaining 0.038.