Alright, let's work through 2169 times 6721 step by step
2169 × 6721 = 6721 × (2169)
+ 6721 × 9 giving us 60489
+ 6721 × 60 what gives us 403260
+ 6721 × 100 giving us 672100
+ 6721 × 2000 yielding 13442000

= 14577849
