CREATE TABLE table_24329520_8 (voters_in_1800 VARCHAR, borough VARCHAR)

What is the number of voters in 1800 that have boroughs named Drogheda?
SELECT COUNT(voters_in_1800) FROM table_24329520_8 WHERE borough = "Drogheda"
SELECT COUNT("voters_in_1800") FROM "table_24329520_8" WHERE "Drogheda" = "borough"