Alright, let's work through 3421 times 2147 step by step
3421 × 2147 = 2147 × (3421)
+ 2147 × 1 which equals 2147
+ 2147 × 20 that is equal 42940
+ 2147 × 400 which equals 858800
+ 2147 × 3000 yielding 6441000

= 7344887
