Alright, let's work through 21318730 times 9385387 step by step
21318730 × 9385387 = 9385387 × (21318730)
+ 9385387 × 0 which equals 0
+ 9385387 × 30 that is equal 281561610
+ 9385387 × 700 which equals 6569770900
+ 9385387 × 8000 yielding 75083096000
+ 9385387 × 10000 what gives us 93853870000
+ 9385387 × 300000 producing 2815616100000
+ 9385387 × 1000000 that equals 9385387000000
+ 9385387 × 20000000 what gives us 187707740000000

= 200084531398510
