Alright, let's work through 20286005 times 71486281 step by step
20286005 × 71486281 = 71486281 × (20286005)
+ 71486281 × 5 yielding 357431405
+ 71486281 × 00 producing 0
+ 71486281 × 000 that equals 0
+ 71486281 × 6000 resulting in 428917686000
+ 71486281 × 80000 resulting in 5718902480000
+ 71486281 × 200000 producing 14297256200000
+ 71486281 × 0000000 what gives us 0
+ 71486281 × 20000000 resulting in 1429725620000000

= 1450171053797405
