Alright, let's work through 1507 times 3410 step by step
1507 × 3410 = 3410 × (1507)
+ 3410 × 7 yielding 23870
+ 3410 × 00 that is equal 0
+ 3410 × 500 that equals 1705000
+ 3410 × 1000 producing 3410000

= 5138870
