Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_2226817_8 ( no_in_series VARCHAR, production_code VARCHAR )

### Question ###
Which series number has the production code 7.07?

### Accurate SQL ###

SELECT COUNT(no_in_series) FROM table_2226817_8 WHERE production_code = "7.07"