We're dividing 302297 by 15 
Let's see how many times 15 fits into 302297.

Advancing to step 1:
If we divide 3 by 15, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 15

Advancing to step 2:
30 divided by 15 is 2 with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 30 from 30 leaves us with 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 15

Moving on to step 3:
If we divide 2 by 15, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 15

Going ahead to step 4:
If we divide 22 by 15, we get 1 and a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 201.0
The remainder is 7 after subtracting 15 from 22.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 15

Step 5:
The number 15 fits into 79 5 times, leaving a remainder of 4.
Put 5 as the next digit of the answer. 
Result so far: 2015.0
If we take 75 away from 79, we end up with 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 15

Advancing to step 6:
The number 15 fits into 47 3 times, leaving a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 20153.0
Deduct 45 from 47 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 7:
15 can be fit into 20 1 times, resulting in a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 20153.1
The remainder is 5 after subtracting 15 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 8:
15 goes into 50 3 times with a remainder of 5.
The next digit of our result is 3. 
Result so far: 20153.13
If we take 45 away from 50, 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 9:
If we divide 50 by 15, we get 3 and a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 20153.133
Subtract 45 from 50 to 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 outcome is 20153.133, with a leftover of 0.0005.