Alright, let's work through 1005 times 3522 step by step
1005 × 3522 = 3522 × (1005)
+ 3522 × 5 giving us 17610
+ 3522 × 00 that is equal 0
+ 3522 × 000 which equals 0
+ 3522 × 1000 what gives us 3522000

= 3539610
