Alright, let's work through 3138 times 604 step by step
3138 × 604 = 604 × (3138)
+ 604 × 8 yielding 4832
+ 604 × 30 that is equal 18120
+ 604 × 100 resulting in 60400
+ 604 × 3000 that equals 1812000

= 1895352
