No problem, we've got 20771670 and 34161616 to multiply
20771670 × 34161616 = 34161616 × (20771670)
+ 34161616 × 0 what gives us 0
+ 34161616 × 70 resulting in 2391313120
+ 34161616 × 600 which equals 20496969600
+ 34161616 × 1000 resulting in 34161616000
+ 34161616 × 70000 that equals 2391313120000
+ 34161616 × 700000 resulting in 23913131200000
+ 34161616 × 0000000 what gives us 0
+ 34161616 × 20000000 yielding 683232320000000

= 709593814218720
