Alright, let's work through 13582787 times 64735179 step by step
13582787 × 64735179 = 64735179 × (13582787)
+ 64735179 × 7 yielding 453146253
+ 64735179 × 80 that results in 5178814320
+ 64735179 × 700 what gives us 45314625300
+ 64735179 × 2000 yielding 129470358000
+ 64735179 × 80000 giving us 5178814320000
+ 64735179 × 500000 yielding 32367589500000
+ 64735179 × 3000000 that results in 194205537000000
+ 64735179 × 10000000 resulting in 647351790000000

= 879284147763873
