225660 ÷ 15 
We want to figure out the number of times 225660 can be divided by 15.

Going ahead to step 1:
The number 15 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 15

On to step 2:
The number 15 fits into 22 1 times, leaving a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 15 from 22 leaves us with 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 15

Let's proceed to step 3:
15 can be fit into 75 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Deduct 75 from 75 and we're left with 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 15

Going ahead to step 4:
The number 15 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 150.0
If we subtract 0 from 6, we get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 15

Let's proceed to step 5:
15 can be fit into 66 4 times, resulting in a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 1504.0
If we subtract 60 from 66, we get 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 15

Advancing to step 6:
15 can be fit into 60 4 times, resulting in a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 15044.0
If we subtract 60 from 60, 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 7:
15 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 15044.0
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.

Going ahead to step 8:
The number 15 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 15044.0
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.

The final outcome is 15044.0, with a leftover of 0.0.