Alright, let's work through 4471 times 4491 step by step
4471 × 4491 = 4491 × (4471)
+ 4491 × 1 which equals 4491
+ 4491 × 70 what gives us 314370
+ 4491 × 400 which equals 1796400
+ 4491 × 4000 that is equal 17964000

= 20079261
