Alright, let's work through 4392 times 3542 step by step
4392 × 3542 = 3542 × (4392)
+ 3542 × 2 that equals 7084
+ 3542 × 90 giving us 318780
+ 3542 × 300 that equals 1062600
+ 3542 × 4000 that equals 14168000

= 15556464
