Alright, let's work through 1392 times 4142 step by step
1392 × 4142 = 4142 × (1392)
+ 4142 × 2 giving us 8284
+ 4142 × 90 producing 372780
+ 4142 × 300 giving us 1242600
+ 4142 × 1000 which equals 4142000

= 5765664
