Alright, let's work through 1392 times 9117 step by step
1392 × 9117 = 9117 × (1392)
+ 9117 × 2 resulting in 18234
+ 9117 × 90 which equals 820530
+ 9117 × 300 producing 2735100
+ 9117 × 1000 producing 9117000

= 12690864
