All the numbers mentioned are actually super tiny in the real world of data mining.
But he said he SAW the 900 million calls, and SAW trumps name “a zillion times”. Even given the obvious hyperbole of “a zillion times”, he clearly did not LOOK AT the logs of 900 million calls, or count them, much less SEE that Trump’s name was in the transcripts a zillion times.
Maybe he meant “I was shown a database that claimed 900 million numbers, and a report showed trump’s name mentioned 203,431 times.”