No problem, we've got 77978109 and 38043013 to multiply
77978109 × 38043013 = 38043013 × (77978109)
+ 38043013 × 9 what gives us 342387117
+ 38043013 × 00 producing 0
+ 38043013 × 100 that is equal 3804301300
+ 38043013 × 8000 producing 304344104000
+ 38043013 × 70000 that equals 2663010910000
+ 38043013 × 900000 producing 34238711700000
+ 38043013 × 7000000 producing 266301091000000
+ 38043013 × 70000000 what gives us 2663010910000000

= 2966522214402417
