Alright, let's work through 3521 times 218 step by step
3521 × 218 = 218 × (3521)
+ 218 × 1 that is equal 218
+ 218 × 20 yielding 4360
+ 218 × 500 producing 109000
+ 218 × 3000 what gives us 654000

= 767578
