Alright, let's work through 4579 times 6720 step by step
4579 × 6720 = 6720 × (4579)
+ 6720 × 9 what gives us 60480
+ 6720 × 70 which equals 470400
+ 6720 × 500 resulting in 3360000
+ 6720 × 4000 that equals 26880000

= 30770880
