We look at the division of 143942 by 9 
We want to divide 143942 by 9.

Step 1:
If we divide 1 by 9, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 9

Moving on to step 2:
If we divide 14 by 9, we get 1 and a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 9 from 14 to get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 9

Going ahead to step 3:
When dividing 53 by 9, we get 5 with a remainder of 8.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtract 45 from 53 to get 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 9

Advancing to step 4:
When dividing 89 by 9, we get 9 with a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 159.0
Deduct 81 from 89 and we're left with 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 9

Let's proceed to step 5:
When dividing 84 by 9, we get 9 with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 1599.0
Subtract 81 from 84 to get 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 9

Going ahead to step 6:
The number 9 fits into 32 3 times, leaving a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 15993.0
If we subtract 27 from 32, we get 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 7:
The number 9 fits into 50 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 15993.5
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 8:
50 divided by 9 is 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 15993.55
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 15993.55 with a remaining 0.005.