Alright, let's work through 8394 times 5380 step by step
8394 × 5380 = 5380 × (8394)
+ 5380 × 4 what gives us 21520
+ 5380 × 90 yielding 484200
+ 5380 × 300 that equals 1614000
+ 5380 × 8000 that equals 43040000

= 45159720
