Alright, let's work through 21618120 times 20213250 step by step
21618120 × 20213250 = 20213250 × (21618120)
+ 20213250 × 0 that is equal 0
+ 20213250 × 20 resulting in 404265000
+ 20213250 × 100 yielding 2021325000
+ 20213250 × 8000 what gives us 161706000000
+ 20213250 × 10000 giving us 202132500000
+ 20213250 × 600000 that equals 12127950000000
+ 20213250 × 1000000 that is equal 20213250000000
+ 20213250 × 20000000 that equals 404265000000000

= 436972464090000
