No problem, we've got 64620402 and 87909918 to multiply
64620402 × 87909918 = 87909918 × (64620402)
+ 87909918 × 2 that results in 175819836
+ 87909918 × 00 that equals 0
+ 87909918 × 400 which equals 35163967200
+ 87909918 × 0000 what gives us 0
+ 87909918 × 20000 that equals 1758198360000
+ 87909918 × 600000 yielding 52745950800000
+ 87909918 × 4000000 that results in 351639672000000
+ 87909918 × 60000000 that equals 5274595080000000

= 5680774240947036
