Alright, let's work through 21386718 times 60036204 step by step
21386718 × 60036204 = 60036204 × (21386718)
+ 60036204 × 8 yielding 480289632
+ 60036204 × 10 resulting in 600362040
+ 60036204 × 700 producing 42025342800
+ 60036204 × 6000 resulting in 360217224000
+ 60036204 × 80000 giving us 4802896320000
+ 60036204 × 300000 that equals 18010861200000
+ 60036204 × 1000000 producing 60036204000000
+ 60036204 × 20000000 giving us 1200724080000000

= 1283977364738472
