We look at the division of 342053 by 15 
Let's see how many times 15 fits into 342053.

Step 1:
15 goes into 3 0 times with 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.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 15

Going ahead to step 2:
34 divided by 15 is 2 with a remainder of 4.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 4 after subtracting 30 from 34.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 15

Moving on to step 3:
15 goes into 42 2 times with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 22.0
Subtracting 30 from 42 leaves us with 12.
Fetch the next digit (0) from the dividend, attach it to 12 and continue: 120 / 15

Advancing to step 4:
The number 15 fits into 120 8 times, leaving a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 228.0
The remainder is 0 after subtracting 120 from 120.
Fetch the next digit (5) from the dividend, attach it to 0 and continue: 5 / 15

Going ahead to step 5:
The number 15 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 2280.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 15

On to step 6:
53 divided by 15 is 3 with a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 22803.0
Subtracting 45 from 53 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 7:
80 divided by 15 is 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 22803.5
If we take 75 away from 80, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
The number 15 fits into 50 3 times, leaving a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 22803.53
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
50 divided by 15 is 3 with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 22803.533
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final result is 22803.533 with a remainder of 0.0005.