253897 ÷ 2 
Let's see how many times 2 fits into 253897.

On to step 1:
The number 2 fits into 2 1 times, leaving a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 0 after subtracting 2 from 2.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 2

Step 2:
The number 2 fits into 5 2 times, leaving a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we subtract 4 from 5, we get 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 2

Moving on to step 3:
13 divided by 2 is 6 with a remainder of 1.
The next digit of our result is 6. 
Result so far: 126.0
Subtracting 12 from 13 leaves us with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 2

Step 4:
When dividing 18 by 2, we get 9 with a remainder of 0.
The next digit of our result is 9. 
Result so far: 1269.0
Subtracting 18 from 18 leaves us with 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 2

Advancing to step 5:
If we divide 9 by 2, we get 4 and a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 12694.0
If we take 8 away from 9, we end up with 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 2

Let's proceed to step 6:
The number 2 fits into 17 8 times, leaving a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 126948.0
The remainder is 1 after subtracting 16 from 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
The number 2 fits into 10 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 126948.5
The remainder is 0 after subtracting 10 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
2 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 126948.5
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.

Let's proceed to step 9:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 126948.5
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.

The final result is 126948.5 with a remainder of 0.0.