Alright, let's work through 1407 times 2522 step by step
1407 × 2522 = 2522 × (1407)
+ 2522 × 7 giving us 17654
+ 2522 × 00 producing 0
+ 2522 × 400 producing 1008800
+ 2522 × 1000 yielding 2522000

= 3548454
