Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_1876825_7 (no_in_series VARCHAR, production_code VARCHAR)
### Question:
Name the number of number in series for production code of 06-04-621
### Answer:
SELECT COUNT(no_in_series) FROM table_1876825_7 WHERE production_code = "06-04-621"