Alright, let's work through 4775 times 7993 step by step
4775 × 7993 = 7993 × (4775)
+ 7993 × 5 what gives us 39965
+ 7993 × 70 that results in 559510
+ 7993 × 700 resulting in 5595100
+ 7993 × 4000 that equals 31972000

= 38166575
