Alright, let's work through 8378 times 7570 step by step
8378 × 7570 = 7570 × (8378)
+ 7570 × 8 that is equal 60560
+ 7570 × 70 what gives us 529900
+ 7570 × 300 what gives us 2271000
+ 7570 × 8000 giving us 60560000

= 63421460
