So if remote viewing is real how does it actually work?

I want to give you an example. If you give a blood sample and send it around the world; watch a horror movie in Europe - your blood sample in USA will instantly flush out adrenalin your body does in Europe. If you can project your mind to another place, you are connected in this kind of information-thread. I think, you are not even interested to enlarge your mental abilities but maybe, it is interesting to you.

Book by: Dora Von Gelder - Shakras

Let's face it, if anything like this was possible was provable we would all know about it. 

EDIT - A second answer below.

Short answer - not very well. A number of scientists associated with Project Star Gate, the CIA's remote viewing program, have said that the program, though interesting from a theoretical point of view, did not yield results good enough to justify funding the program. Former CIA director Robert Gates said that Star Gate findings did not result in any policy changes. Parapsychology research relies on statistical analysis of data.

Second answer - I cannot explain how consciousness is associated with the activity of brain cells. Nevertheless it is. Neither can I explain how remote viewers might see things in faraway lands.

In remote viewing, the conditions the "viewer" were put under varied. In many cases, the viewer was put in a room with (ostensibly) very little outside stimulation so they could concentrate and not be influenced by outside stimuli. In the "Ganzfeld" experiments, they had eye covers and headphones with white noise. Then, given a location to concentrate on, they viewer is asked to retrieve some unknown information about it, e.g., the current weather, a prominent landmark, etc. It is often quite subjective.

While there are many researchers excited about remote viewing and who have published seemingly positive results, these studies have met with considerable criticism for their protocol, "sensory leakage", and lack of proper statistics. Terence Hines wrote in 2003 that the ganzfeld studies could not be said to provide evidence for psi as the alleged evidence disappears as the tightness of experimental controls is increased. 

At this point there isn't strong scientific evidence for its existence.

EDIT:

Regarding your clarification, the "how" of remote viewing is, at this point, only a matter of conjecture from those who believe in it. Scientifically there is no theory (explanation) of remote viewing since it has not been confirmed to actually exist, so all one can do is come up with their own preferred belief.