Alright, let's work through 3507 times 3706 step by step
3507 × 3706 = 3706 × (3507)
+ 3706 × 7 yielding 25942
+ 3706 × 00 that equals 0
+ 3706 × 500 producing 1853000
+ 3706 × 3000 producing 11118000

= 12996942
