CREATE TABLE table_57110 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

How many spectators were at the game where Richmond was the away team?
SELECT SUM("Crowd") FROM table_57110 WHERE "Away team" = 'richmond'
SELECT SUM("Crowd") FROM "table_57110" WHERE "Away team" = 'richmond'