Alright, let's work through 80109217 times 69052487 step by step
80109217 × 69052487 = 69052487 × (80109217)
+ 69052487 × 7 that results in 483367409
+ 69052487 × 10 producing 690524870
+ 69052487 × 200 that is equal 13810497400
+ 69052487 × 9000 which equals 621472383000
+ 69052487 × 00000 producing 0
+ 69052487 × 100000 that results in 6905248700000
+ 69052487 × 0000000 that is equal 0
+ 69052487 × 80000000 producing 5524198960000000

= 5531740665472679
