Alright, let's work through 1284 times 7128 step by step
1284 × 7128 = 7128 × (1284)
+ 7128 × 4 producing 28512
+ 7128 × 80 that equals 570240
+ 7128 × 200 that equals 1425600
+ 7128 × 1000 that equals 7128000

= 9152352
