Alright, let's work through 6003 times 381 step by step
6003 × 381 = 381 × (6003)
+ 381 × 3 what gives us 1143
+ 381 × 00 yielding 0
+ 381 × 000 that results in 0
+ 381 × 6000 yielding 2286000

= 2287143
