Alright, let's work through 20660326 times 21541297 step by step
20660326 × 21541297 = 21541297 × (20660326)
+ 21541297 × 6 producing 129247782
+ 21541297 × 20 that results in 430825940
+ 21541297 × 300 that results in 6462389100
+ 21541297 × 0000 that results in 0
+ 21541297 × 60000 yielding 1292477820000
+ 21541297 × 600000 which equals 12924778200000
+ 21541297 × 0000000 which equals 0
+ 21541297 × 20000000 giving us 430825940000000

= 445050218482822
