Alright, let's work through 86442467 times 60943309 step by step
86442467 × 60943309 = 60943309 × (86442467)
+ 60943309 × 7 what gives us 426603163
+ 60943309 × 60 that is equal 3656598540
+ 60943309 × 400 which equals 24377323600
+ 60943309 × 2000 which equals 121886618000
+ 60943309 × 40000 yielding 2437732360000
+ 60943309 × 400000 producing 24377323600000
+ 60943309 × 6000000 resulting in 365659854000000
+ 60943309 × 80000000 yielding 4875464720000000

= 5268089977103303
