Alright, let's work through 84347711 times 83198517 step by step
84347711 × 83198517 = 83198517 × (84347711)
+ 83198517 × 1 producing 83198517
+ 83198517 × 10 resulting in 831985170
+ 83198517 × 700 resulting in 58238961900
+ 83198517 × 7000 yielding 582389619000
+ 83198517 × 40000 giving us 3327940680000
+ 83198517 × 300000 producing 24959555100000
+ 83198517 × 4000000 that equals 332794068000000
+ 83198517 × 80000000 giving us 6655881360000000

= 7017604467544587
