131142 ÷ 42 
We want to figure out the number of times 131142 can be divided by 42.

Let's proceed to step 1:
1 divided by 42 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 42

Let's proceed to step 2:
The number 42 fits into 13 0 times, leaving a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Bring next digit (1) of the dividend behind the 13 and repeat the process: 131 / 42

On to step 3:
42 goes into 131 3 times with a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 126 from 131 leaves us with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 42

Advancing to step 4:
42 goes into 51 1 times with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 31.0
The remainder is 9 after subtracting 42 from 51.
Append the next digit (4) from the dividend to 9 and continue with: 94 / 42

Going ahead to step 5:
42 goes into 94 2 times with a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 312.0
If we subtract 84 from 94, we get 10.
Take the next digit (2) from the dividend and append it to 10, then repeat: 102 / 42

Advancing to step 6:
When dividing 102 by 42, we get 2 with a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 3122.0
If we take 84 away from 102, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 7:
If we divide 180 by 42, we get 4 and a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 3122.4
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.

Step 8:
When dividing 120 by 42, we get 2 with a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 3122.42
If we subtract 84 from 120, we 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.

On to step 9:
When dividing 360 by 42, we get 8 with a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 3122.428
Subtract 336 from 360 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 10:
240 divided by 42 is 5 with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 3122.4285
Subtracting 210 from 240 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 11:
When dividing 300 by 42, we get 7 with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 3122.42857
The remainder is 6 after subtracting 294 from 300.
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:
60 divided by 42 is 1 with a remainder of 18.
The next digit of our result is 1. 
Result so far: 3122.428571
Subtracting 42 from 60 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 13:
If we divide 180 by 42, we get 4 and a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 3122.4285714
Deduct 168 from 180 and we're left 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.

Going ahead to step 14:
120 divided by 42 is 2 with a remainder of 36.
Put 2 as the next digit of the answer. 
Result so far: 3122.42857142
The remainder is 36 after subtracting 84 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

In conclusion, the division gives 3122.42857142 with a balance of 3.6e-08.