Alright, let's work through 4380 times 4167 step by step
4380 × 4167 = 4167 × (4380)
+ 4167 × 0 that results in 0
+ 4167 × 80 that is equal 333360
+ 4167 × 300 that equals 1250100
+ 4167 × 4000 that results in 16668000

= 18251460
