How Are Photographs Developed?

To develop photos all you need to do is: -

Take out the film out of your camera and open it in pitch black.
Place it into a tray
After that you need to pour and mix the solution known as the Developer in to the tray and mix it.
Remove the developer once the time is up
Then pour the chemical known as the 'Stop'
Once the film has been washed in these chemicals you can remove the film.
After removing the film you need to place them in running water so as to wash away all the chemicals.
Then place the film in the photo flow and wash away all the splotches and unwanted fingerprints.
Once everything is done, you can hang out your photos to dry.

But keep in mind no to open the film in light as it can destroy all the photos.