25199 divided by 78 
We want to figure out the number of times 25199 can be divided by 78.

Advancing to step 1:
78 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 78

On to step 2:
78 goes into 25 0 times with a remainder of 25.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 25 leaves us with 25.
Grab the next digit (1) from the dividend, add it to 25, then carry on: 251 / 78

Let's proceed to step 3:
78 goes into 251 3 times with a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 234 from 251 to get 17.
Grab the next digit (9) from the dividend, add it to 17, then carry on: 179 / 78

On to step 4:
If we divide 179 by 78, we get 2 and a remainder of 23.
Put 2 as the next digit of the answer. 
Result so far: 32.0
The remainder is 23 after subtracting 156 from 179.
Include the next digit (9) from the dividend after 23, then repeat: 239 / 78

On to step 5:
239 divided by 78 is 3 with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 323.0
The remainder is 5 after subtracting 234 from 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 6:
78 goes into 50 0 times with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 323.0
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 7:
500 divided by 78 is 6 with a remainder of 32.
The next digit of our result is 6. 
Result so far: 323.06
If we take 468 away from 500, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 8:
78 can be fit into 320 4 times, resulting in a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 323.064
Subtract 312 from 320 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 9:
When dividing 80 by 78, we get 1 with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 323.0641
Subtracting 78 from 80 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 10:
20 divided by 78 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 323.0641
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
The number 78 fits into 200 2 times, leaving a remainder of 44.
Record the quotient 2 as the next digit in the result. 
Result so far: 323.064102
The remainder is 44 after subtracting 156 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 12:
440 divided by 78 is 5 with a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 323.0641025
Deduct 390 from 440 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 13:
If we divide 500 by 78, we get 6 and a remainder of 32.
Write down 6 as next digit of the result. 
Result so far: 323.06410256
Subtracting 468 from 500 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 323.06410256 and a remainder of 3.2e-08.