No problem, we've got 12578665 and 79851185 to multiply
12578665 × 79851185 = 79851185 × (12578665)
+ 79851185 × 5 giving us 399255925
+ 79851185 × 60 that equals 4791071100
+ 79851185 × 600 that equals 47910711000
+ 79851185 × 8000 producing 638809480000
+ 79851185 × 70000 producing 5589582950000
+ 79851185 × 500000 which equals 39925592500000
+ 79851185 × 2000000 giving us 159702370000000
+ 79851185 × 10000000 yielding 798511850000000

= 1004421305968025
