Alright, let's work through 1391 times 7122 step by step
1391 × 7122 = 7122 × (1391)
+ 7122 × 1 yielding 7122
+ 7122 × 90 which equals 640980
+ 7122 × 300 resulting in 2136600
+ 7122 × 1000 producing 7122000

= 9906702
