Alright, let's work through 2828 times 5255 step by step
2828 × 5255 = 5255 × (2828)
+ 5255 × 8 which equals 42040
+ 5255 × 20 that equals 105100
+ 5255 × 800 that results in 4204000
+ 5255 × 2000 that equals 10510000

= 14861140
