25445403 ÷ 258 
Let's see how many times 258 fits into 25445403.

On to step 1:
The number 258 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 258

Advancing to step 2:
The number 258 fits into 25 0 times, leaving a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Fetch the next digit (4) from the dividend, attach it to 25 and continue: 254 / 258

On to step 3:
258 can be fit into 254 0 times, resulting in a remainder of 254.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 254 leaves us with 254.
Grab the next digit (4) from the dividend, add it to 254, then carry on: 2544 / 258

Moving on to step 4:
When dividing 2544 by 258, we get 9 with a remainder of 222.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtracting 2322 from 2544 leaves us with 222.
Fetch the next digit (5) from the dividend, attach it to 222 and continue: 2225 / 258

Going ahead to step 5:
If we divide 2225 by 258, we get 8 and a remainder of 161.
Write down 8 as next digit of the result. 
Result so far: 98.0
If we take 2064 away from 2225, we end up with 161.
Take the next digit (4) from the dividend and append it to 161, then repeat: 1614 / 258

Moving on to step 6:
The number 258 fits into 1614 6 times, leaving a remainder of 66.
The next digit of our result is 6. 
Result so far: 986.0
If we take 1548 away from 1614, we end up with 66.
Fetch the next digit (0) from the dividend, attach it to 66 and continue: 660 / 258

Advancing to step 7:
If we divide 660 by 258, we get 2 and a remainder of 144.
Use 2 as the next digit of our solution. 
Result so far: 9862.0
Deduct 516 from 660 and we're left with 144.
Grab the next digit (3) from the dividend, add it to 144, then carry on: 1443 / 258

Step 8:
258 goes into 1443 5 times with a remainder of 153.
Write down 5 as next digit of the result. 
Result so far: 98625.0
Subtract 1290 from 1443 to get 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Step 9:
258 goes into 1530 5 times with a remainder of 240.
Record the quotient 5 as the next digit in the result. 
Result so far: 98625.5
Subtract 1290 from 1530 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 10:
258 goes into 2400 9 times with a remainder of 78.
The next digit of our result is 9. 
Result so far: 98625.59
If we take 2322 away from 2400, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 11:
If we divide 780 by 258, we get 3 and a remainder of 6.
The next digit of our result is 3. 
Result so far: 98625.593
Subtracting 774 from 780 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 12:
60 divided by 258 is 0 with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 98625.593
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 13:
The number 258 fits into 600 2 times, leaving a remainder of 84.
Record the quotient 2 as the next digit in the result. 
Result so far: 98625.59302
If we subtract 516 from 600, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 14:
The number 258 fits into 840 3 times, leaving a remainder of 66.
The next digit of our result is 3. 
Result so far: 98625.593023
Subtracting 774 from 840 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 15:
When dividing 660 by 258, we get 2 with a remainder of 144.
Write down 2 as next digit of the result. 
Result so far: 98625.5930232
Subtract 516 from 660 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Advancing to step 16:
258 goes into 1440 5 times with a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 98625.59302325
Deduct 1290 from 1440 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

The quotient of the division is 98625.59302325, and the remainder is 1.5e-07.