Alright, let's work through 20966720 times 81270093 step by step
20966720 × 81270093 = 81270093 × (20966720)
+ 81270093 × 0 that equals 0
+ 81270093 × 20 yielding 1625401860
+ 81270093 × 700 that is equal 56889065100
+ 81270093 × 6000 resulting in 487620558000
+ 81270093 × 60000 that equals 4876205580000
+ 81270093 × 900000 that is equal 73143083700000
+ 81270093 × 0000000 that is equal 0
+ 81270093 × 20000000 that is equal 1625401860000000

= 1703967284304960
