Alright, let's work through 3420 times 500 step by step
3420 × 500 = 500 × (3420)
+ 500 × 0 giving us 0
+ 500 × 20 which equals 10000
+ 500 × 400 yielding 200000
+ 500 × 3000 yielding 1500000

= 1710000
