No problem, we've got 66826387 and 68949649 to multiply
66826387 × 68949649 = 68949649 × (66826387)
+ 68949649 × 7 yielding 482647543
+ 68949649 × 80 what gives us 5515971920
+ 68949649 × 300 which equals 20684894700
+ 68949649 × 6000 that is equal 413697894000
+ 68949649 × 20000 giving us 1378992980000
+ 68949649 × 800000 what gives us 55159719200000
+ 68949649 × 6000000 which equals 413697894000000
+ 68949649 × 60000000 that results in 4136978940000000

= 4607655927588163
