Let's divide 158043 by 42
Our goal is to divide 158043 by 42.

Going ahead to step 1:
When dividing 1 by 42, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 42

Step 2:
15 divided by 42 is 0 with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Fetch the next digit (8) from the dividend, attach it to 15 and continue: 158 / 42

Moving on to step 3:
When dividing 158 by 42, we get 3 with a remainder of 32.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 126 from 158 to get 32.
Include the next digit (0) from the dividend after 32, then repeat: 320 / 42

Moving on to step 4:
If we divide 320 by 42, we get 7 and a remainder of 26.
Use 7 as the next digit of our solution. 
Result so far: 37.0
If we subtract 294 from 320, we get 26.
Take the next digit (4) from the dividend and append it to 26, then repeat: 264 / 42

Moving on to step 5:
264 divided by 42 is 6 with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 376.0
The remainder is 12 after subtracting 252 from 264.
Fetch the next digit (3) from the dividend, attach it to 12 and continue: 123 / 42

Let's proceed to step 6:
When dividing 123 by 42, we get 2 with a remainder of 39.
Use 2 as the next digit of our solution. 
Result so far: 3762.0
Deduct 84 from 123 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 7:
390 divided by 42 is 9 with a remainder of 12.
Record the quotient 9 as the next digit in the result. 
Result so far: 3762.9
The remainder is 12 after subtracting 378 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 8:
If we divide 120 by 42, we get 2 and a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 3762.92
Subtract 84 from 120 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 9:
42 can be fit into 360 8 times, resulting in a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 3762.928
The remainder is 24 after subtracting 336 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 10:
The number 42 fits into 240 5 times, leaving a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 3762.9285
The remainder is 30 after subtracting 210 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 11:
42 can be fit into 300 7 times, resulting in a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 3762.92857
Subtract 294 from 300 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 12:
42 goes into 60 1 times with a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 3762.928571
Subtract 42 from 60 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 13:
42 can be fit into 180 4 times, resulting in a remainder of 12.
The number 4 becomes the next digit in our result. 
Result so far: 3762.9285714
If we take 168 away from 180, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 14:
120 divided by 42 is 2 with a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 3762.92857142
Deduct 84 from 120 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Our division results in 3762.92857142 with a remaining 3.6e-08.