Alright, let's work through 3517 times 3902 step by step
3517 × 3902 = 3902 × (3517)
+ 3902 × 7 yielding 27314
+ 3902 × 10 giving us 39020
+ 3902 × 500 which equals 1951000
+ 3902 × 3000 that equals 11706000

= 13723334
