No problem, we've got 85602319 and 88073479 to multiply
85602319 × 88073479 = 88073479 × (85602319)
+ 88073479 × 9 which equals 792661311
+ 88073479 × 10 resulting in 880734790
+ 88073479 × 300 which equals 26422043700
+ 88073479 × 2000 giving us 176146958000
+ 88073479 × 00000 that equals 0
+ 88073479 × 600000 what gives us 52844087400000
+ 88073479 × 5000000 producing 440367395000000
+ 88073479 × 80000000 which equals 7045878320000000

= 7539294044797801
