Alright, let's work through 2280 times 5205 step by step
2280 × 5205 = 5205 × (2280)
+ 5205 × 0 producing 0
+ 5205 × 80 that is equal 416400
+ 5205 × 200 giving us 1041000
+ 5205 × 2000 which equals 10410000

= 11867400
