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_24887326_7 (tie_no VARCHAR, away_team VARCHAR)
### Question:
When the away team is Millwall, what is the total possible amount of tie numbers?
### Answer:
SELECT COUNT(tie_no) FROM table_24887326_7 WHERE away_team = "Millwall"