Alright, let's work through 84648214 times 77508243 step by step
84648214 × 77508243 = 77508243 × (84648214)
+ 77508243 × 4 producing 310032972
+ 77508243 × 10 producing 775082430
+ 77508243 × 200 producing 15501648600
+ 77508243 × 8000 that results in 620065944000
+ 77508243 × 40000 which equals 3100329720000
+ 77508243 × 600000 yielding 46504945800000
+ 77508243 × 4000000 which equals 310032972000000
+ 77508243 × 80000000 giving us 6200659440000000

= 6560934340228002
