No problem, we've got 66665523 and 8242818 to multiply
66665523 × 8242818 = 8242818 × (66665523)
+ 8242818 × 3 that results in 24728454
+ 8242818 × 20 what gives us 164856360
+ 8242818 × 500 that equals 4121409000
+ 8242818 × 5000 yielding 41214090000
+ 8242818 × 60000 giving us 494569080000
+ 8242818 × 600000 giving us 4945690800000
+ 8242818 × 6000000 yielding 49456908000000
+ 8242818 × 60000000 yielding 494569080000000

= 549511772963814
