Alright, let's work through 9145 times 9199 step by step
9145 × 9199 = 9199 × (9145)
+ 9199 × 5 yielding 45995
+ 9199 × 40 that results in 367960
+ 9199 × 100 that results in 919900
+ 9199 × 9000 that results in 82791000

= 84124855
