Alright, let's work through 8623 times 9661 step by step
8623 × 9661 = 9661 × (8623)
+ 9661 × 3 what gives us 28983
+ 9661 × 20 which equals 193220
+ 9661 × 600 that equals 5796600
+ 9661 × 8000 that results in 77288000

= 83306803
