Alright, let's work through 5421 times 2427 step by step
5421 × 2427 = 2427 × (5421)
+ 2427 × 1 resulting in 2427
+ 2427 × 20 giving us 48540
+ 2427 × 400 that equals 970800
+ 2427 × 5000 what gives us 12135000

= 13156767
