Simplify the following text for a Grade 7 native English-speaking person.
Original: The highest total seasonal attendance was recorded during the 1980 â `` 81 season when the aggregate was more than 814,000 during a season in which Ipswich won the UEFA Cup and finished second in the First Division .
Simplified: The highest total seasonal attendance was in the 1980 â `` 81 season when the total was more than 814,000 .