Alright, let's work through 20484246 times 65343817 step by step
20484246 × 65343817 = 65343817 × (20484246)
+ 65343817 × 6 that equals 392062902
+ 65343817 × 40 giving us 2613752680
+ 65343817 × 200 yielding 13068763400
+ 65343817 × 4000 yielding 261375268000
+ 65343817 × 80000 producing 5227505360000
+ 65343817 × 400000 resulting in 26137526800000
+ 65343817 × 0000000 what gives us 0
+ 65343817 × 20000000 that results in 1306876340000000

= 1338518822006982
