Alright, let's work through 8553 times 8400 step by step
8553 × 8400 = 8400 × (8553)
+ 8400 × 3 giving us 25200
+ 8400 × 50 that equals 420000
+ 8400 × 500 producing 4200000
+ 8400 × 8000 that equals 67200000

= 71845200
