12605 divided by 20 
We're looking to find how many times 20 goes into 12605.

Let's proceed to step 1:
20 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 20

On to step 2:
When dividing 12 by 20, we get 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Take the next digit (6) from the dividend and append it to 12, then repeat: 126 / 20

On to step 3:
If we divide 126 by 20, we get 6 and a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtract 120 from 126 to get 6.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 20

Let's proceed to step 4:
20 goes into 60 3 times with a remainder of 0.
The next digit of our result is 3. 
Result so far: 63.0
Subtracting 60 from 60 leaves us with 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 20

Going ahead to step 5:
20 can be fit into 5 0 times, resulting in a remainder of 5.
The next digit of our result is 0. 
Result so far: 630.0
If we take 0 away from 5, 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.

Going ahead to step 6:
The number 20 fits into 50 2 times, leaving a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 630.2
Subtracting 40 from 50 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.

Going ahead to step 7:
20 goes into 100 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 630.25
The remainder is 0 after subtracting 100 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
0 divided by 20 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 630.25
If we subtract 0 from 0, we get 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 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 630.25
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 630.25, with a leftover of 0.0.