Alright, let's work through 7139 times 2127 step by step
7139 × 2127 = 2127 × (7139)
+ 2127 × 9 that equals 19143
+ 2127 × 30 that equals 63810
+ 2127 × 100 what gives us 212700
+ 2127 × 7000 what gives us 14889000

= 15184653
