Alright, let's work through 6672 times 2134 step by step
6672 × 2134 = 2134 × (6672)
+ 2134 × 2 what gives us 4268
+ 2134 × 70 that results in 149380
+ 2134 × 600 what gives us 1280400
+ 2134 × 6000 what gives us 12804000

= 14238048
