Alright, let's work through 6748 times 2751 step by step
6748 × 2751 = 2751 × (6748)
+ 2751 × 8 that equals 22008
+ 2751 × 40 giving us 110040
+ 2751 × 700 producing 1925700
+ 2751 × 6000 which equals 16506000

= 18563748
