391470 ÷ 25 
We want to divide 391470 by 25.

Step 1:
When dividing 3 by 25, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 25

Advancing to step 2:
When dividing 39 by 25, we get 1 with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 25 from 39 to get 14.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 25

Let's proceed 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
If we take 125 away from 141, we end up with 16.
Grab the next digit (4) from the dividend, add it to 16, then carry on: 164 / 25

Let's proceed to step 4:
When dividing 164 by 25, we get 6 with a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 156.0
If we take 150 away from 164, we end up with 14.
Include the next digit (7) from the dividend after 14, then repeat: 147 / 25

Moving on to step 5:
25 can be fit into 147 5 times, resulting in a remainder of 22.
Put 5 as the next digit of the answer. 
Result so far: 1565.0
The remainder is 22 after subtracting 125 from 147.
Grab the next digit (0) from the dividend, add it to 22, then carry on: 220 / 25

Going ahead to step 6:
220 divided by 25 is 8 with a remainder of 20.
The next digit of our result is 8. 
Result so far: 15658.0
If we subtract 200 from 220, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 7:
The number 25 fits into 200 8 times, leaving a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 15658.8
The remainder is 0 after subtracting 200 from 200.
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:
If we divide 0 by 25, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 15658.8
Subtracting 0 from 0 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.

Moving on to step 9:
When dividing 0 by 25, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 15658.8
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.

The final result is 15658.8 with a remainder of 0.0.