CREATE TABLE table_23008 ("Team" TEXT, "Games" FLOAT, "Wins" FLOAT, "Losses" FLOAT, "Ties" FLOAT, "Win Pct." TEXT, "Playoff berths" FLOAT, "Division titles" FLOAT, "Postseason record" TEXT, "Super Bowl record" TEXT)

How many division titles are there when the win pc is .558?
SELECT "Division titles" FROM table_23008 WHERE "Win Pct." = '.558'
SELECT "Division titles" FROM "table_23008" WHERE "Win Pct." = '.558'