Alright, let's work through 6440 times 562 step by step
6440 × 562 = 562 × (6440)
+ 562 × 0 producing 0
+ 562 × 40 giving us 22480
+ 562 × 400 what gives us 224800
+ 562 × 6000 yielding 3372000

= 3619280
