Alright, let's work through 3355 times 3903 step by step
3355 × 3903 = 3903 × (3355)
+ 3903 × 5 that equals 19515
+ 3903 × 50 that is equal 195150
+ 3903 × 300 yielding 1170900
+ 3903 × 3000 what gives us 11709000

= 13094565
