CREATE TABLE table_70559 ("Year" FLOAT, "Division" FLOAT, "League" TEXT, "Regular Season" TEXT, "Playoffs" TEXT, "Open Cup" TEXT)

What is the highest Division when the playoffs were the quarter finals, with a Regular Season of 5th?
SELECT MAX("Division") FROM table_70559 WHERE "Playoffs" = 'quarter finals' AND "Regular Season" = '5th'
SELECT MAX("Division") FROM "table_70559" WHERE "Playoffs" = 'quarter finals' AND "Regular Season" = '5th'