Alright, let's work through 4120 times 2828 step by step
4120 × 2828 = 2828 × (4120)
+ 2828 × 0 resulting in 0
+ 2828 × 20 which equals 56560
+ 2828 × 100 resulting in 282800
+ 2828 × 4000 what gives us 11312000

= 11651360
