Alright, let's work through 3355 times 6623 step by step
3355 × 6623 = 6623 × (3355)
+ 6623 × 5 yielding 33115
+ 6623 × 50 that equals 331150
+ 6623 × 300 that equals 1986900
+ 6623 × 3000 which equals 19869000

= 22220165
