Alright, let's work through 54246879 times 97138715 step by step
54246879 × 97138715 = 97138715 × (54246879)
+ 97138715 × 9 what gives us 874248435
+ 97138715 × 70 that results in 6799710050
+ 97138715 × 800 giving us 77710972000
+ 97138715 × 6000 yielding 582832290000
+ 97138715 × 40000 resulting in 3885548600000
+ 97138715 × 200000 resulting in 19427743000000
+ 97138715 × 4000000 resulting in 388554860000000
+ 97138715 × 50000000 that is equal 4856935750000000

= 5269472118820485
