No problem, we've got 3667 and 6415 to multiply
3667 × 6415 = 6415 × (3667)
+ 6415 × 7 giving us 44905
+ 6415 × 60 that equals 384900
+ 6415 × 600 producing 3849000
+ 6415 × 3000 yielding 19245000

= 23523805
