Alright, let's work through 4902 times 4191 step by step
4902 × 4191 = 4191 × (4902)
+ 4191 × 2 that is equal 8382
+ 4191 × 00 what gives us 0
+ 4191 × 900 which equals 3771900
+ 4191 × 4000 which equals 16764000

= 20544282
