No problem, we've got 72417679 and 66667880 to multiply
72417679 × 66667880 = 66667880 × (72417679)
+ 66667880 × 9 producing 600010920
+ 66667880 × 70 that is equal 4666751600
+ 66667880 × 600 that equals 40000728000
+ 66667880 × 7000 that is equal 466675160000
+ 66667880 × 10000 what gives us 666678800000
+ 66667880 × 400000 giving us 26667152000000
+ 66667880 × 2000000 that is equal 133335760000000
+ 66667880 × 70000000 which equals 4666751600000000

= 4827933133450520
