19178411 ÷ 25 
We want to figure out the number of times 19178411 can be divided by 25.

Moving on to step 1:
When dividing 1 by 25, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 25

Moving on to step 2:
The number 25 fits into 19 0 times, leaving a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 19 leaves us with 19.
Grab the next digit (1) from the dividend, add it to 19, then carry on: 191 / 25

On to step 3:
If we divide 191 by 25, we get 7 and a remainder of 16.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 175 from 191, we get 16.
Include the next digit (7) from the dividend after 16, then repeat: 167 / 25

Let's proceed to step 4:
If we divide 167 by 25, we get 6 and a remainder of 17.
Use 6 as the next digit of our solution. 
Result so far: 76.0
Subtracting 150 from 167 leaves us with 17.
Include the next digit (8) from the dividend after 17, then repeat: 178 / 25

On to step 5:
If we divide 178 by 25, we get 7 and a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 767.0
The remainder is 3 after subtracting 175 from 178.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 25

On to step 6:
25 can be fit into 34 1 times, resulting in a remainder of 9.
The next digit of our result is 1. 
Result so far: 7671.0
The remainder is 9 after subtracting 25 from 34.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 25

Advancing to step 7:
The number 25 fits into 91 3 times, leaving a remainder of 16.
The next digit of our result is 3. 
Result so far: 76713.0
If we subtract 75 from 91, we get 16.
Include the next digit (1) from the dividend after 16, then repeat: 161 / 25

Advancing to step 8:
161 divided by 25 is 6 with a remainder of 11.
Write down 6 as next digit of the result. 
Result so far: 767136.0
If we take 150 away from 161, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 9:
25 goes into 110 4 times with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 767136.4
If we subtract 100 from 110, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
25 can be fit into 100 4 times, resulting in a remainder of 0.
The next digit of our result is 4. 
Result so far: 767136.44
Subtract 100 from 100 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.

The final outcome is 767136.44, with a leftover of 0.0.