No problem, we've got 66789021 and 76520482 to multiply
66789021 × 76520482 = 76520482 × (66789021)
+ 76520482 × 1 which equals 76520482
+ 76520482 × 20 that equals 1530409640
+ 76520482 × 000 what gives us 0
+ 76520482 × 9000 which equals 688684338000
+ 76520482 × 80000 which equals 6121638560000
+ 76520482 × 700000 giving us 53564337400000
+ 76520482 × 6000000 giving us 459122892000000
+ 76520482 × 60000000 giving us 4591228920000000

= 5110728079228122
