Alright, let's work through 21324943 times 9998323 step by step
21324943 × 9998323 = 9998323 × (21324943)
+ 9998323 × 3 yielding 29994969
+ 9998323 × 40 what gives us 399932920
+ 9998323 × 900 yielding 8998490700
+ 9998323 × 4000 that equals 39993292000
+ 9998323 × 20000 that results in 199966460000
+ 9998323 × 300000 that equals 2999496900000
+ 9998323 × 1000000 what gives us 9998323000000
+ 9998323 × 20000000 giving us 199966460000000

= 213213668070589
