Alright, let's work through 5439 times 2370 step by step
5439 × 2370 = 2370 × (5439)
+ 2370 × 9 yielding 21330
+ 2370 × 30 giving us 71100
+ 2370 × 400 that equals 948000
+ 2370 × 5000 which equals 11850000

= 12890430
