How do you get a record deal? I don't understand how it works.?

i want 2 work wit conway recording studios so will i need 2 just walk in wit my agent & giv em my demo cd & b lyke: here u go, i recorded this on an 8 trak recorder if u lyke it can i start recordin sum songs here and put em on itunes? how does that all work?! plz explain & giv examplz if possibl!!!