308203 ÷ 15 
We're looking to find how many times 15 goes into 308203.

Going ahead to step 1:
15 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
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 / 15

Let's proceed to step 2:
15 goes into 30 2 times with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 30 from 30, we get 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 15

On to step 3:
If we divide 8 by 15, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (2) from the dividend to 8 and continue with: 82 / 15

Let's proceed to step 4:
15 can be fit into 82 5 times, resulting in a remainder of 7.
Write down 5 as next digit of the result. 
Result so far: 205.0
The remainder is 7 after subtracting 75 from 82.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 15

On to step 5:
15 can be fit into 70 4 times, resulting in a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 2054.0
The remainder is 10 after subtracting 60 from 70.
Fetch the next digit (3) from the dividend, attach it to 10 and continue: 103 / 15

Step 6:
15 can be fit into 103 6 times, resulting in a remainder of 13.
Write down 6 as next digit of the result. 
Result so far: 20546.0
The remainder is 13 after subtracting 90 from 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 7:
15 goes into 130 8 times with a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 20546.8
Subtracting 120 from 130 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.

Step 8:
When dividing 100 by 15, we get 6 with a remainder of 10.
The next digit of our result is 6. 
Result so far: 20546.86
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
15 can be fit into 100 6 times, resulting in a remainder of 10.
The next digit of our result is 6. 
Result so far: 20546.866
If we take 90 away from 100, 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.

The final result is 20546.866 with a remainder of 0.001.