We're going to solve 21214002 multiplied by 84256687
21214002 × 84256687 = 84256687 × (21214002)
+ 84256687 × 2 producing 168513374
+ 84256687 × 00 producing 0
+ 84256687 × 000 that results in 0
+ 84256687 × 4000 which equals 337026748000
+ 84256687 × 10000 yielding 842566870000
+ 84256687 × 200000 that results in 16851337400000
+ 84256687 × 1000000 which equals 84256687000000
+ 84256687 × 20000000 yielding 1685133740000000

= 1787421526531374
