Alright, let's work through 2878 times 7016 step by step
2878 × 7016 = 7016 × (2878)
+ 7016 × 8 which equals 56128
+ 7016 × 70 that results in 491120
+ 7016 × 800 what gives us 5612800
+ 7016 × 2000 giving us 14032000

= 20192048
