Alright, let's work through 4878 times 3440 step by step
4878 × 3440 = 3440 × (4878)
+ 3440 × 8 that equals 27520
+ 3440 × 70 that equals 240800
+ 3440 × 800 which equals 2752000
+ 3440 × 4000 yielding 13760000

= 16780320
