CREATE TABLE table_2186 ("Year" FLOAT, "Division" FLOAT, "League" TEXT, "Regular Season" TEXT, "Playoffs" TEXT, "Open Cup" TEXT)

What's the lowest division number of the 6th, Great Lakes season?
SELECT MIN("Division") FROM table_2186 WHERE "Regular Season" = '6th, Great Lakes'
SELECT MIN("Division") FROM "table_2186" WHERE "Regular Season" = '6th, Great Lakes'