Alright, let's work through 7123 times 2169 step by step
7123 × 2169 = 2169 × (7123)
+ 2169 × 3 producing 6507
+ 2169 × 20 resulting in 43380
+ 2169 × 100 which equals 216900
+ 2169 × 7000 that equals 15183000

= 15449787
