25901902 ÷ 548 
Our goal is to divide 25901902 by 548.

Step 1:
The number 548 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 548

Going ahead to step 2:
548 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
The remainder is 25 after subtracting 0 from 25.
Take the next digit (9) from the dividend and append it to 25, then repeat: 259 / 548

On to step 3:
548 can be fit into 259 0 times, resulting in a remainder of 259.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 259, we get 259.
Include the next digit (0) from the dividend after 259, then repeat: 2590 / 548

Let's proceed to step 4:
548 goes into 2590 4 times with a remainder of 398.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 2192 from 2590 and we're left with 398.
Append the next digit (1) from the dividend to 398 and continue with: 3981 / 548

Moving on to step 5:
3981 divided by 548 is 7 with a remainder of 145.
Write down 7 as next digit of the result. 
Result so far: 47.0
The remainder is 145 after subtracting 3836 from 3981.
Include the next digit (9) from the dividend after 145, then repeat: 1459 / 548

Going ahead to step 6:
1459 divided by 548 is 2 with a remainder of 363.
Write down 2 as next digit of the result. 
Result so far: 472.0
Subtracting 1096 from 1459 leaves us with 363.
Take the next digit (0) from the dividend and append it to 363, then repeat: 3630 / 548

Advancing to step 7:
3630 divided by 548 is 6 with a remainder of 342.
The next digit of our result is 6. 
Result so far: 4726.0
If we take 3288 away from 3630, we end up with 342.
Fetch the next digit (2) from the dividend, attach it to 342 and continue: 3422 / 548

Step 8:
548 can be fit into 3422 6 times, resulting in a remainder of 134.
Put 6 as the next digit of the answer. 
Result so far: 47266.0
Subtracting 3288 from 3422 leaves us with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Going ahead to step 9:
The number 548 fits into 1340 2 times, leaving a remainder of 244.
Record the quotient 2 as the next digit in the result. 
Result so far: 47266.2
Subtracting 1096 from 1340 leaves us with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

On to step 10:
If we divide 2440 by 548, we get 4 and a remainder of 248.
Record the quotient 4 as the next digit in the result. 
Result so far: 47266.24
Deduct 2192 from 2440 and we're left with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Moving on to step 11:
The number 548 fits into 2480 4 times, leaving a remainder of 288.
Write down 4 as next digit of the result. 
Result so far: 47266.244
Deduct 2192 from 2480 and we're left with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

The final outcome is 47266.244, with a leftover of 0.0288.