Alright, let's work through 8787 times 8240 step by step
8787 × 8240 = 8240 × (8787)
+ 8240 × 7 that is equal 57680
+ 8240 × 80 that is equal 659200
+ 8240 × 700 which equals 5768000
+ 8240 × 8000 that is equal 65920000

= 72404880
