No problem, we've got 77600306 and 6164080 to multiply
77600306 × 6164080 = 6164080 × (77600306)
+ 6164080 × 6 that results in 36984480
+ 6164080 × 00 yielding 0
+ 6164080 × 300 what gives us 1849224000
+ 6164080 × 0000 producing 0
+ 6164080 × 00000 which equals 0
+ 6164080 × 600000 that is equal 3698448000000
+ 6164080 × 7000000 that results in 43148560000000
+ 6164080 × 70000000 yielding 431485600000000

= 478334494208480
