This counting mitzvos is insane both ways.
Every minute a chabadnik asks a goy “excuse me are you Jewish”, he is fulfilling a mitzva of ahavas yisroel and is pikuach nefesh, which is on a totally different level, of course. That would be 480 pikuach nefesh in one 8-hour “work” day.
At the same time, you say birkas haTorah once a day, so it is one mitzva per day. Now, if you have a hidush, or taought someone else, or went out and practiced what you lernt, you might get to a bigger count, but not everyone does that every day.