Zugehen is a seperable verb so the "zu" must go to the end of the sentance.
One way I have learnt to tell if a verb ist seperable or not is where the emphasis is. When you say "zugehen" you emphasize the "zu". If the emphasis is on the first syllable it is SEPerable. Otherwise, for example "beKOMmen" you emphasize the second syllable, so it it inSEPerable.
Summary: ANkommen = SEPerable beKOMmen = inSEPerable