Alright, let's work through 20215009 times 18024032 step by step
20215009 × 18024032 = 18024032 × (20215009)
+ 18024032 × 9 which equals 162216288
+ 18024032 × 00 that results in 0
+ 18024032 × 000 what gives us 0
+ 18024032 × 5000 that results in 90120160000
+ 18024032 × 10000 that results in 180240320000
+ 18024032 × 200000 that results in 3604806400000
+ 18024032 × 0000000 what gives us 0
+ 18024032 × 20000000 giving us 360480640000000

= 364355969096288
