302388 ÷ 42 
Let's see how many times 42 fits into 302388.

Moving on to step 1:
The number 42 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 42

Moving on to step 2:
If we divide 30 by 42, we get 0 and a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Grab the next digit (2) from the dividend, add it to 30, then carry on: 302 / 42

Moving on to step 3:
The number 42 fits into 302 7 times, leaving a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 294 from 302 leaves us with 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 42

Advancing to step 4:
If we divide 83 by 42, we get 1 and a remainder of 41.
The next digit of our result is 1. 
Result so far: 71.0
Subtract 42 from 83 to get 41.
Include the next digit (8) from the dividend after 41, then repeat: 418 / 42

Advancing to step 5:
418 divided by 42 is 9 with a remainder of 40.
The next digit of our result is 9. 
Result so far: 719.0
If we take 378 away from 418, we end up with 40.
Fetch the next digit (8) from the dividend, attach it to 40 and continue: 408 / 42

Going ahead to step 6:
When dividing 408 by 42, we get 9 with a remainder of 30.
The number 9 becomes the next digit in our result. 
Result so far: 7199.0
Subtracting 378 from 408 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.

Advancing to step 7:
If we divide 300 by 42, we get 7 and a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 7199.7
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.

Going ahead to step 8:
60 divided by 42 is 1 with a remainder of 18.
The next digit of our result is 1. 
Result so far: 7199.71
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.

Going ahead to step 9:
If we divide 180 by 42, we get 4 and a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 7199.714
Subtracting 168 from 180 leaves us 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 10:
42 goes into 120 2 times with a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 7199.7142
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.

On to step 11:
42 goes into 360 8 times with a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 7199.71428
Subtracting 336 from 360 leaves us with 24.
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 12:
If we divide 240 by 42, we get 5 and a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 7199.714285
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 13:
42 can be fit into 300 7 times, resulting in a remainder of 6.
The next digit of our result is 7. 
Result so far: 7199.7142857
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 14:
If we divide 60 by 42, we get 1 and a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 7199.71428571
If we take 42 away from 60, 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.

Our division results in 7199.71428571 with a remaining 1.8e-08.