The FedExCup Overview states:
the total points for each of the tying positions are divided equally
among all players in the tying position
For example, five golfers tie for second during a PGA tour event of a PGA Tour sanctioned tournament.
Second place alone would have accrued 300 FedExCup points, third - 190, fourth - 135, fifth - 110, and sixth - 100.
These values are added up and divided by the number of golfers who tied. "The total points for each of the tying positions" in this example is 835. Five golfers tied, so therefore, "divided equally among all players in the tying position," each golfer would receive 167 FedExCup points.