We divide 502300 by 42
Our goal is to divide 502300 by 42.

On to step 1:
The number 42 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 42

Step 2:
If we divide 50 by 42, we get 1 and a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 42 from 50 leaves us with 8.
Bring next digit (2) of the dividend behind the 8 and repeat the process: 82 / 42

On to step 3:
42 goes into 82 1 times with a remainder of 40.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtracting 42 from 82 leaves us with 40.
Bring next digit (3) of the dividend behind the 40 and repeat the process: 403 / 42

On to step 4:
403 divided by 42 is 9 with a remainder of 25.
Put 9 as the next digit of the answer. 
Result so far: 119.0
Deduct 378 from 403 and we're left with 25.
Include the next digit (0) from the dividend after 25, then repeat: 250 / 42

Going ahead to step 5:
When dividing 250 by 42, we get 5 with a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 1195.0
If we subtract 210 from 250, we get 40.
Take the next digit (0) from the dividend and append it to 40, then repeat: 400 / 42

Advancing to step 6:
The number 42 fits into 400 9 times, leaving a remainder of 22.
The number 9 becomes the next digit in our result. 
Result so far: 11959.0
The remainder is 22 after subtracting 378 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 7:
42 can be fit into 220 5 times, resulting in a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 11959.5
If we take 210 away from 220, 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.

On to step 8:
If we divide 100 by 42, we get 2 and a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 11959.52
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
42 can be fit into 160 3 times, resulting in a remainder of 34.
Use 3 as the next digit of our solution. 
Result so far: 11959.523
The remainder is 34 after subtracting 126 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 10:
If we divide 340 by 42, we get 8 and a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 11959.5238
Deduct 336 from 340 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 11:
42 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 11959.5238
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
When dividing 400 by 42, we get 9 with a remainder of 22.
Put 9 as the next digit of the answer. 
Result so far: 11959.523809
Deduct 378 from 400 and we're left 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.

Advancing to step 13:
42 goes into 220 5 times with a remainder of 10.
The next digit of our result is 5. 
Result so far: 11959.5238095
Subtracting 210 from 220 leaves us 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 14:
100 divided by 42 is 2 with a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 11959.52380952
If we take 84 away from 100, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 11959.52380952, and the remainder is 1.6e-08.