Alright, let's work through 83794073 times 80887617 step by step
83794073 × 80887617 = 80887617 × (83794073)
+ 80887617 × 3 that equals 242662851
+ 80887617 × 70 producing 5662133190
+ 80887617 × 000 yielding 0
+ 80887617 × 4000 giving us 323550468000
+ 80887617 × 90000 giving us 7279885530000
+ 80887617 × 700000 that is equal 56621331900000
+ 80887617 × 3000000 that equals 242662851000000
+ 80887617 × 80000000 that is equal 6471009360000000

= 6777902883694041
