Alright, let's work through 8642 times 9363 step by step
8642 × 9363 = 9363 × (8642)
+ 9363 × 2 that equals 18726
+ 9363 × 40 what gives us 374520
+ 9363 × 600 which equals 5617800
+ 9363 × 8000 that equals 74904000

= 80915046
