Alright, let's work through 21240332 times 96403431 step by step
21240332 × 96403431 = 96403431 × (21240332)
+ 96403431 × 2 producing 192806862
+ 96403431 × 30 that equals 2892102930
+ 96403431 × 300 resulting in 28921029300
+ 96403431 × 0000 giving us 0
+ 96403431 × 40000 that is equal 3856137240000
+ 96403431 × 200000 yielding 19280686200000
+ 96403431 × 1000000 which equals 96403431000000
+ 96403431 × 20000000 producing 1928068620000000

= 2047640880379092
