The Serb was short of his best in an opening round win over Vasek Pospisil, but produced a majestic exhibition of returning in his one-sided 6-1 6-2 rout of Golubev.
There were early warning signs for the Kazakh when he conceded his second service game, slicing a backhand into the net after Djokovic skilfully manoeuvred him around the court.
Golubev was struggling to contain the newly crowned Australian Open champion and conceded a second break with a wayward backhand after Djokovic cleverly dictated another rally.
Protecting his own serve with classy ground strokes, the top seed eased into a one set advantage and then broke Golubev with a sizzling backhand pass for a further break in the second set.
Golubev briefly stemmed the charge, holding stubbornly onto a service game, but could not prevent Djokovic from serving out the match to secure his place in the quarter-finals.??