Alright, let's work through 2520 times 330 step by step
2520 × 330 = 330 × (2520)
+ 330 × 0 that is equal 0
+ 330 × 20 giving us 6600
+ 330 × 500 which equals 165000
+ 330 × 2000 what gives us 660000

= 831600
