Alright, let's work through 21242772 times 73829784 step by step
21242772 × 73829784 = 73829784 × (21242772)
+ 73829784 × 2 that results in 147659568
+ 73829784 × 70 producing 5168084880
+ 73829784 × 700 that equals 51680848800
+ 73829784 × 2000 producing 147659568000
+ 73829784 × 40000 producing 2953191360000
+ 73829784 × 200000 giving us 14765956800000
+ 73829784 × 1000000 what gives us 73829784000000
+ 73829784 × 20000000 yielding 1476595680000000

= 1568349268321248
