Alright, let's work through 54478242 times 78170062 step by step
54478242 × 78170062 = 78170062 × (54478242)
+ 78170062 × 2 which equals 156340124
+ 78170062 × 40 that equals 3126802480
+ 78170062 × 200 yielding 15634012400
+ 78170062 × 8000 that results in 625360496000
+ 78170062 × 70000 yielding 5471904340000
+ 78170062 × 400000 yielding 31268024800000
+ 78170062 × 4000000 giving us 312680248000000
+ 78170062 × 50000000 which equals 3908503100000000

= 4258567554791004
