We look at the division of 20609 by 15 
Let's see how many times 15 fits into 20609.

Moving on to step 1:
The number 15 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 15

Moving on to step 2:
The number 15 fits into 20 1 times, leaving a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 15 from 20, we get 5.
Take the next digit (6) from the dividend and append it to 5, then repeat: 56 / 15

On to step 3:
56 divided by 15 is 3 with a remainder of 11.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we subtract 45 from 56, we get 11.
Fetch the next digit (0) from the dividend, attach it to 11 and continue: 110 / 15

Step 4:
If we divide 110 by 15, we get 7 and a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 137.0
If we subtract 105 from 110, we get 5.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 15

Let's proceed to step 5:
When dividing 59 by 15, we get 3 with a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 1373.0
If we subtract 45 from 59, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 6:
140 divided by 15 is 9 with a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 1373.9
Deduct 135 from 140 and we're left 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.

Let's proceed to step 7:
15 goes into 50 3 times with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 1373.93
Subtracting 45 from 50 leaves us 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.

Step 8:
If we divide 50 by 15, we get 3 and a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 1373.933
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.

After the division, we end up with 1373.933 and a remainder of 0.0005.