Alright, let's work through 1311 times 8874 step by step
1311 × 8874 = 8874 × (1311)
+ 8874 × 1 which equals 8874
+ 8874 × 10 resulting in 88740
+ 8874 × 300 which equals 2662200
+ 8874 × 1000 producing 8874000

= 11633814
