We're going to solve 81604197 multiplied by 80299522
81604197 × 80299522 = 80299522 × (81604197)
+ 80299522 × 7 which equals 562096654
+ 80299522 × 90 producing 7226956980
+ 80299522 × 100 that equals 8029952200
+ 80299522 × 4000 yielding 321198088000
+ 80299522 × 00000 that equals 0
+ 80299522 × 600000 yielding 48179713200000
+ 80299522 × 1000000 giving us 80299522000000
+ 80299522 × 80000000 producing 6423961760000000

= 6552778012293834
