Alright, let's work through 4273 times 144 step by step
4273 × 144 = 144 × (4273)
+ 144 × 3 what gives us 432
+ 144 × 70 that equals 10080
+ 144 × 200 what gives us 28800
+ 144 × 4000 producing 576000

= 615312
