We look at the division of 542463 by 42 
We want to figure out the number of times 542463 can be divided by 42.

Going ahead to step 1:
5 divided by 42 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 42

Moving on to step 2:
42 goes into 54 1 times with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 12 after subtracting 42 from 54.
Bring next digit (2) of the dividend behind the 12 and repeat the process: 122 / 42

Step 3:
When dividing 122 by 42, we get 2 with a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 38 after subtracting 84 from 122.
Grab the next digit (4) from the dividend, add it to 38, then carry on: 384 / 42

On to step 4:
42 can be fit into 384 9 times, resulting in a remainder of 6.
The next digit of our result is 9. 
Result so far: 129.0
The remainder is 6 after subtracting 378 from 384.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 42

Going ahead to step 5:
42 can be fit into 66 1 times, resulting in a remainder of 24.
The next digit of our result is 1. 
Result so far: 1291.0
Subtract 42 from 66 to get 24.
Fetch the next digit (3) from the dividend, attach it to 24 and continue: 243 / 42

Step 6:
If we divide 243 by 42, we get 5 and a remainder of 33.
The next digit of our result is 5. 
Result so far: 12915.0
Subtract 210 from 243 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 7:
42 goes into 330 7 times with a remainder of 36.
Put 7 as the next digit of the answer. 
Result so far: 12915.7
Subtract 294 from 330 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.

Step 8:
The number 42 fits into 360 8 times, leaving a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 12915.78
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.

Step 9:
The number 42 fits into 240 5 times, leaving a remainder of 30.
The next digit of our result is 5. 
Result so far: 12915.785
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.

Let's proceed to step 10:
The number 42 fits into 300 7 times, leaving a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 12915.7857
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.

Step 11:
The number 42 fits into 60 1 times, leaving a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 12915.78571
If we subtract 42 from 60, we 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.

On to step 12:
42 goes into 180 4 times with a remainder of 12.
The number 4 becomes the next digit in our result. 
Result so far: 12915.785714
If we subtract 168 from 180, we get 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 13:
42 can be fit into 120 2 times, resulting in a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 12915.7857142
Subtracting 84 from 120 leaves us 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.

Going ahead to step 14:
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: 12915.78571428
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.

Our division results in 12915.78571428 with a remaining 2.4e-08.