Alright, let's work through 4280 times 8205 step by step
4280 × 8205 = 8205 × (4280)
+ 8205 × 0 that is equal 0
+ 8205 × 80 giving us 656400
+ 8205 × 200 which equals 1641000
+ 8205 × 4000 producing 32820000

= 35117400
