No problem, we've got 66154467 and 64869307 to multiply
66154467 × 64869307 = 64869307 × (66154467)
+ 64869307 × 7 what gives us 454085149
+ 64869307 × 60 what gives us 3892158420
+ 64869307 × 400 which equals 25947722800
+ 64869307 × 4000 that equals 259477228000
+ 64869307 × 50000 producing 3243465350000
+ 64869307 × 100000 resulting in 6486930700000
+ 64869307 × 6000000 that results in 389215842000000
+ 64869307 × 60000000 that equals 3892158420000000

= 4291394429244369
