We look at the division of 20580 by 15 
Our goal is to divide 20580 by 15.

Let's proceed to step 1:
If we divide 2 by 15, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 15

Moving on to step 2:
When dividing 20 by 15, we get 1 with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 15 from 20 to get 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 15

Moving on to step 3:
15 can be fit into 55 3 times, resulting in a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 45 from 55 to get 10.
Bring next digit (8) of the dividend behind the 10 and repeat the process: 108 / 15

Let's proceed to step 4:
When dividing 108 by 15, we get 7 with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 137.0
If we take 105 away from 108, we end up with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 15

Step 5:
30 divided by 15 is 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 1372.0
Deduct 30 from 30 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 6:
15 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1372.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
If we divide 0 by 15, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1372.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 1372.0 and a remainder of 0.0.