No problem, we've got 80278773 and 48888164 to multiply
80278773 × 48888164 = 48888164 × (80278773)
+ 48888164 × 3 what gives us 146664492
+ 48888164 × 70 that is equal 3422171480
+ 48888164 × 700 that is equal 34221714800
+ 48888164 × 8000 that is equal 391105312000
+ 48888164 × 70000 that is equal 3422171480000
+ 48888164 × 200000 that equals 9777632800000
+ 48888164 × 0000000 resulting in 0
+ 48888164 × 80000000 producing 3911053120000000

= 3924681820142772
