We look at the division of 253939 by 50 
We're looking to find how many times 50 goes into 253939.

Let's proceed to step 1:
When dividing 2 by 50, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 50

Moving on to step 2:
50 can be fit into 25 0 times, resulting in a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Include the next digit (3) from the dividend after 25, then repeat: 253 / 50

Going ahead to step 3:
If we divide 253 by 50, we get 5 and a remainder of 3.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 3 after subtracting 250 from 253.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 50

On to step 4:
The number 50 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 50.0
If we subtract 0 from 39, we get 39.
Include the next digit (3) from the dividend after 39, then repeat: 393 / 50

Step 5:
If we divide 393 by 50, we get 7 and a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 507.0
The remainder is 43 after subtracting 350 from 393.
Fetch the next digit (9) from the dividend, attach it to 43 and continue: 439 / 50

Advancing to step 6:
If we divide 439 by 50, we get 8 and a remainder of 39.
Write down 8 as next digit of the result. 
Result so far: 5078.0
Subtract 400 from 439 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 7:
50 goes into 390 7 times with a remainder of 40.
Use 7 as the next digit of our solution. 
Result so far: 5078.7
Subtracting 350 from 390 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 8:
400 divided by 50 is 8 with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 5078.78
Subtracting 400 from 400 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:
0 divided by 50 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 5078.78
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:
If we divide 0 by 50, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 5078.78
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.

The final outcome is 5078.78, with a leftover of 0.0.