Alright, let's work through 3620 times 2320 step by step
3620 × 2320 = 2320 × (3620)
+ 2320 × 0 what gives us 0
+ 2320 × 20 yielding 46400
+ 2320 × 600 what gives us 1392000
+ 2320 × 3000 producing 6960000

= 8398400
