Alright, let's work through 3180 times 3179 step by step
3180 × 3179 = 3179 × (3180)
+ 3179 × 0 what gives us 0
+ 3179 × 80 producing 254320
+ 3179 × 100 yielding 317900
+ 3179 × 3000 what gives us 9537000

= 10109220
