Alright, let's work through 80806829 times 19079153 step by step
80806829 × 19079153 = 19079153 × (80806829)
+ 19079153 × 9 yielding 171712377
+ 19079153 × 20 yielding 381583060
+ 19079153 × 800 giving us 15263322400
+ 19079153 × 6000 giving us 114474918000
+ 19079153 × 00000 resulting in 0
+ 19079153 × 800000 what gives us 15263322400000
+ 19079153 × 0000000 giving us 0
+ 19079153 × 80000000 resulting in 1526332240000000

= 1541725853935837
