Alright, let's work through 7867 times 3980 step by step
7867 × 3980 = 3980 × (7867)
+ 3980 × 7 that equals 27860
+ 3980 × 60 yielding 238800
+ 3980 × 800 that equals 3184000
+ 3980 × 7000 that results in 27860000

= 31310660
