Alright, let's work through 21376706 times 61652087 step by step
21376706 × 61652087 = 61652087 × (21376706)
+ 61652087 × 6 yielding 369912522
+ 61652087 × 00 producing 0
+ 61652087 × 700 resulting in 43156460900
+ 61652087 × 6000 that results in 369912522000
+ 61652087 × 70000 resulting in 4315646090000
+ 61652087 × 300000 giving us 18495626100000
+ 61652087 × 1000000 yielding 61652087000000
+ 61652087 × 20000000 giving us 1233041740000000

= 1317918538085422
