15400 ÷ 25 
Let's see how many times 25 fits into 15400.

Advancing to step 1:
25 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 25

Advancing to step 2:
15 divided by 25 is 0 with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Include the next digit (4) from the dividend after 15, then repeat: 154 / 25

Advancing to step 3:
154 divided by 25 is 6 with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 150 from 154, we get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 25

Let's proceed to step 4:
If we divide 40 by 25, we get 1 and a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 61.0
Subtract 25 from 40 to get 15.
Fetch the next digit (0) from the dividend, attach it to 15 and continue: 150 / 25

Going ahead to step 5:
150 divided by 25 is 6 with a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 616.0
Subtract 150 from 150 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.

Going ahead to step 6:
If we divide 0 by 25, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 616.0
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.

Advancing to step 7:
0 divided by 25 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 616.0
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.

Our division results in 616.0 with a remaining 0.0.