Alright, let's work through 8190 times 9236 step by step
8190 × 9236 = 9236 × (8190)
+ 9236 × 0 that equals 0
+ 9236 × 90 which equals 831240
+ 9236 × 100 that results in 923600
+ 9236 × 8000 yielding 73888000

= 75642840
