Alright, let's work through 8984 times 9660 step by step
8984 × 9660 = 9660 × (8984)
+ 9660 × 4 which equals 38640
+ 9660 × 80 that is equal 772800
+ 9660 × 900 that is equal 8694000
+ 9660 × 8000 that equals 77280000

= 86785440
