Alright, let's work through 66308871 times 5497544 step by step
66308871 × 5497544 = 5497544 × (66308871)
+ 5497544 × 1 which equals 5497544
+ 5497544 × 70 what gives us 384828080
+ 5497544 × 800 that equals 4398035200
+ 5497544 × 8000 resulting in 43980352000
+ 5497544 × 00000 producing 0
+ 5497544 × 300000 that is equal 1649263200000
+ 5497544 × 6000000 yielding 32985264000000
+ 5497544 × 60000000 resulting in 329852640000000

= 364535935912824
