Alright, let's work through 4203 times 7089 step by step
4203 × 7089 = 7089 × (4203)
+ 7089 × 3 producing 21267
+ 7089 × 00 that results in 0
+ 7089 × 200 that is equal 1417800
+ 7089 × 4000 that equals 28356000

= 29795067
