Alright, let's work through 80091995 times 87499484 step by step
80091995 × 87499484 = 87499484 × (80091995)
+ 87499484 × 5 that equals 437497420
+ 87499484 × 90 yielding 7874953560
+ 87499484 × 900 producing 78749535600
+ 87499484 × 1000 which equals 87499484000
+ 87499484 × 90000 what gives us 7874953560000
+ 87499484 × 000000 that is equal 0
+ 87499484 × 0000000 that equals 0
+ 87499484 × 80000000 that results in 6999958720000000

= 7008008235030580
