Alright, let's work through 4775 times 8421 step by step
4775 × 8421 = 8421 × (4775)
+ 8421 × 5 which equals 42105
+ 8421 × 70 producing 589470
+ 8421 × 700 what gives us 5894700
+ 8421 × 4000 resulting in 33684000

= 40210275
