Alright, let's work through 28304547 times 21069609 step by step
28304547 × 21069609 = 21069609 × (28304547)
+ 21069609 × 7 which equals 147487263
+ 21069609 × 40 that equals 842784360
+ 21069609 × 500 that equals 10534804500
+ 21069609 × 4000 resulting in 84278436000
+ 21069609 × 00000 producing 0
+ 21069609 × 300000 that results in 6320882700000
+ 21069609 × 8000000 which equals 168556872000000
+ 21069609 × 20000000 yielding 421392180000000

= 596365738212123
