Alright, let's work through 2479 times 4005 step by step
2479 × 4005 = 4005 × (2479)
+ 4005 × 9 producing 36045
+ 4005 × 70 yielding 280350
+ 4005 × 400 that equals 1602000
+ 4005 × 2000 producing 8010000

= 9928395
