Alright, let's work through 48328119 times 78878984 step by step
48328119 × 78878984 = 78878984 × (48328119)
+ 78878984 × 9 that equals 709910856
+ 78878984 × 10 which equals 788789840
+ 78878984 × 100 yielding 7887898400
+ 78878984 × 8000 which equals 631031872000
+ 78878984 × 20000 which equals 1577579680000
+ 78878984 × 300000 producing 23663695200000
+ 78878984 × 8000000 giving us 631031872000000
+ 78878984 × 40000000 giving us 3155159360000000

= 3812072925351096
