We divide 143842 by 30
Our goal is to divide 143842 by 30.

Going ahead to step 1:
If we divide 1 by 30, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 30

Moving on to step 2:
If we divide 14 by 30, we get 0 and a remainder of 14.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 14 leaves us with 14.
Take the next digit (3) from the dividend and append it to 14, then repeat: 143 / 30

Advancing to step 3:
30 can be fit into 143 4 times, resulting in a remainder of 23.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 23 after subtracting 120 from 143.
Fetch the next digit (8) from the dividend, attach it to 23 and continue: 238 / 30

Let's proceed to step 4:
30 goes into 238 7 times with a remainder of 28.
Use 7 as the next digit of our solution. 
Result so far: 47.0
Subtracting 210 from 238 leaves us with 28.
Include the next digit (4) from the dividend after 28, then repeat: 284 / 30

Advancing to step 5:
The number 30 fits into 284 9 times, leaving a remainder of 14.
The next digit of our result is 9. 
Result so far: 479.0
Subtract 270 from 284 to get 14.
Include the next digit (2) from the dividend after 14, then repeat: 142 / 30

Step 6:
When dividing 142 by 30, we get 4 with a remainder of 22.
Write down 4 as next digit of the result. 
Result so far: 4794.0
Subtracting 120 from 142 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 7:
220 divided by 30 is 7 with a remainder of 10.
The next digit of our result is 7. 
Result so far: 4794.7
Subtract 210 from 220 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
100 divided by 30 is 3 with a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 4794.73
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 9:
If we divide 100 by 30, we get 3 and a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 4794.733
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 4794.733 and a remainder of 0.001.