CREATE TABLE table_73678 ("Club" CLOB, "Home city" CLOB, "Stadium" CLOB, "First season in the Serie A" FLOAT, "First season in current spell" FLOAT, "Last title" CLOB)

Name the most for first season in the serie a for 7 de octubre
SELECT MAX("First season in the Serie A") FROM table_73678 WHERE "Stadium" = '7 de Octubre'
SELECT MAX("First season in the Serie A") FROM "table_73678" WHERE "Stadium" = '7 de Octubre'