Alright, let's work through 4089 times 1338 step by step
4089 × 1338 = 1338 × (4089)
+ 1338 × 9 which equals 12042
+ 1338 × 80 that results in 107040
+ 1338 × 000 that equals 0
+ 1338 × 4000 that results in 5352000

= 5471082
