From Longman Dictionary of Contemporary Englishhow are things going?/how’s it going?/how goes it?how are things going?/how’s it going?/how goes it?spoken used to ask someone what is happening in their life, especially used as a greeting ‘Hi Jane. How’s it going?’ ‘Fine, thanks.’ → go
Examples from the Corpus
how are things going?/how’s it going?/how goes it?• "Hey, Al, how's it going?" "Fine." 