Alright, let's work through 6686 times 1091 step by step
6686 × 1091 = 1091 × (6686)
+ 1091 × 6 producing 6546
+ 1091 × 80 which equals 87280
+ 1091 × 600 what gives us 654600
+ 1091 × 6000 giving us 6546000

= 7294426
