Answer:
80 ten thousands, 7 thousands,5 hundreds, and 9 tens are used; 6 hundred thousands is not included.
Explanation:
6,807,590 can be expanded as
6,000,000 + 800,000 + 7,000 + 500 + 90
That is, 6 millions + 80 ten thousands + 7 thousands + 5 hundreds + 9 tens
6 hundred thousands (600,000) is not included, but 60 hundred thousands (6,000,000, the same as 6 millions) is included