Alright, let's work through 66669127 times 21023421 step by step
66669127 × 21023421 = 21023421 × (66669127)
+ 21023421 × 7 resulting in 147163947
+ 21023421 × 20 that is equal 420468420
+ 21023421 × 100 that equals 2102342100
+ 21023421 × 9000 yielding 189210789000
+ 21023421 × 60000 which equals 1261405260000
+ 21023421 × 600000 producing 12614052600000
+ 21023421 × 6000000 producing 126140526000000
+ 21023421 × 60000000 that equals 1261405260000000

= 1401613124623467
