Alright, let's work through 4560 times 7991 step by step
4560 × 7991 = 7991 × (4560)
+ 7991 × 0 that equals 0
+ 7991 × 60 that is equal 479460
+ 7991 × 500 which equals 3995500
+ 7991 × 4000 what gives us 31964000

= 36438960
