No problem, we've got 80806408 and 98625457 to multiply
80806408 × 98625457 = 98625457 × (80806408)
+ 98625457 × 8 that equals 789003656
+ 98625457 × 00 that equals 0
+ 98625457 × 400 what gives us 39450182800
+ 98625457 × 6000 yielding 591752742000
+ 98625457 × 00000 which equals 0
+ 98625457 × 800000 that equals 78900365600000
+ 98625457 × 0000000 producing 0
+ 98625457 × 80000000 producing 7890036560000000

= 7969568917528456
