Alright, let's work through 3426 times 715 step by step
3426 × 715 = 715 × (3426)
+ 715 × 6 which equals 4290
+ 715 × 20 that is equal 14300
+ 715 × 400 which equals 286000
+ 715 × 3000 that is equal 2145000

= 2449590
