Alright, let's work through 4791 times 661 step by step
4791 × 661 = 661 × (4791)
+ 661 × 1 yielding 661
+ 661 × 90 producing 59490
+ 661 × 700 what gives us 462700
+ 661 × 4000 which equals 2644000

= 3166851
