390839 ÷ 25 
Our goal is to divide 390839 by 25.

Advancing to step 1:
If we divide 3 by 25, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 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
Deduct 25 from 39 and we're left with 14.
Append the next digit (0) from the dividend to 14 and continue with: 140 / 25

Going ahead to step 3:
140 divided by 25 is 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 15.0
If we subtract 125 from 140, we get 15.
Bring next digit (8) of the dividend behind the 15 and repeat the process: 158 / 25

Moving on to step 4:
25 can be fit into 158 6 times, resulting in a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 156.0
The remainder is 8 after subtracting 150 from 158.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 25

Step 5:
The number 25 fits into 83 3 times, leaving a remainder of 8.
The number 3 becomes the next digit in our result. 
Result so far: 1563.0
If we take 75 away from 83, we end up with 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 25

Advancing to step 6:
25 goes into 89 3 times with a remainder of 14.
The next digit of our result is 3. 
Result so far: 15633.0
Subtract 75 from 89 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 7:
If we divide 140 by 25, we get 5 and a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 15633.5
The remainder is 15 after subtracting 125 from 140.
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:
If we divide 150 by 25, we get 6 and a remainder of 0.
The next digit of our result is 6. 
Result so far: 15633.56
Deduct 150 from 150 and we're left 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.

Step 9:
If we divide 0 by 25, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 15633.56
Deduct 0 from 0 and we're left 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.

Advancing to step 10:
If we divide 0 by 25, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 15633.56
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.

In conclusion, the division gives 15633.56 with a balance of 0.0.