391259 ÷ 25 
Let's see how many times 25 fits into 391259.

Step 1:
25 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 25

Advancing to step 2:
39 divided by 25 is 1 with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 14 after subtracting 25 from 39.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 25

On to step 3:
The number 25 fits into 141 5 times, leaving a remainder of 16.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
The remainder is 16 after subtracting 125 from 141.
Bring next digit (2) of the dividend behind the 16 and repeat the process: 162 / 25

Going ahead to step 4:
If we divide 162 by 25, we get 6 and a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 156.0
If we subtract 150 from 162, we get 12.
Take the next digit (5) from the dividend and append it to 12, then repeat: 125 / 25

Moving on to step 5:
25 goes into 125 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 1565.0
The remainder is 0 after subtracting 125 from 125.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 25

Step 6:
If we divide 9 by 25, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 15650.0
If we take 0 away from 9, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
When dividing 90 by 25, we get 3 with a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 15650.3
Subtracting 75 from 90 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 8:
The number 25 fits into 150 6 times, leaving a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 15650.36
Subtracting 150 from 150 leaves us 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.

On to step 9:
25 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 15650.36
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.

Advancing to step 10:
25 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 15650.36
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 15650.36, with a leftover of 0.0.