Alright, let's work through 4859 times 721 step by step
4859 × 721 = 721 × (4859)
+ 721 × 9 which equals 6489
+ 721 × 50 which equals 36050
+ 721 × 800 that is equal 576800
+ 721 × 4000 that is equal 2884000

= 3503339
