Alright, let's work through 4573 times 6840 step by step
4573 × 6840 = 6840 × (4573)
+ 6840 × 3 that is equal 20520
+ 6840 × 70 which equals 478800
+ 6840 × 500 what gives us 3420000
+ 6840 × 4000 yielding 27360000

= 31279320
