Alright, let's work through 3188 times 2121 step by step
3188 × 2121 = 2121 × (3188)
+ 2121 × 8 which equals 16968
+ 2121 × 80 which equals 169680
+ 2121 × 100 yielding 212100
+ 2121 × 3000 yielding 6363000

= 6761748
