Alright, let's work through 4154 times 142 step by step
4154 × 142 = 142 × (4154)
+ 142 × 4 that results in 568
+ 142 × 50 resulting in 7100
+ 142 × 100 giving us 14200
+ 142 × 4000 what gives us 568000

= 589868
