Alright, let's work through 80505179 times 17542359 step by step
80505179 × 17542359 = 17542359 × (80505179)
+ 17542359 × 9 that equals 157881231
+ 17542359 × 70 that results in 1227965130
+ 17542359 × 100 that is equal 1754235900
+ 17542359 × 5000 producing 87711795000
+ 17542359 × 00000 that equals 0
+ 17542359 × 500000 that results in 8771179500000
+ 17542359 × 0000000 which equals 0
+ 17542359 × 80000000 resulting in 1403388720000000

= 1412250751377261
