How many different titles are there of episodes that have been seen by 7.84 million people in the US/
CREATE TABLE table_23242933_2 (
    title VARCHAR,
    us_viewers__millions_ VARCHAR
)
SELECT COUNT(title) FROM table_23242933_2 WHERE us_viewers__millions_ = "7.84"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many different titles are there of episodes that have been seen by 7.84 million people in the US/ ### Input: CREATE TABLE table_23242933_2 (
    title VARCHAR,
    us_viewers__millions_ VARCHAR
) ### Response: SELECT COUNT(title) FROM table_23242933_2 WHERE us_viewers__millions_ = "7.84"