No problem, we've got 88839168 and 64663400 to multiply
88839168 × 64663400 = 64663400 × (88839168)
+ 64663400 × 8 giving us 517307200
+ 64663400 × 60 yielding 3879804000
+ 64663400 × 100 yielding 6466340000
+ 64663400 × 9000 giving us 581970600000
+ 64663400 × 30000 that equals 1939902000000
+ 64663400 × 800000 producing 51730720000000
+ 64663400 × 8000000 what gives us 517307200000000
+ 64663400 × 80000000 producing 5173072000000000

= 5744642656051200
