It's a song about not understanding how some rich people seem to be able to afford a life without working (hence: como lo hacen, how do they do that)
I understand but can't really translate this verse:
Cabarete ante noche
Con amores de mil cien
Juegan toditos los juegos
Y siempre dan cuatro y tres
I understand the described people party a lot and are very popular, play every possible game and the singer wonders how they manage.
Thanks for your suggestions!