Alright, let's work through 6003 times 5866 step by step
6003 × 5866 = 5866 × (6003)
+ 5866 × 3 giving us 17598
+ 5866 × 00 producing 0
+ 5866 × 000 that is equal 0
+ 5866 × 6000 that is equal 35196000

= 35213598
