Alright, let's work through 80192703 times 99518666 step by step
80192703 × 99518666 = 99518666 × (80192703)
+ 99518666 × 3 giving us 298555998
+ 99518666 × 00 which equals 0
+ 99518666 × 700 resulting in 69663066200
+ 99518666 × 2000 what gives us 199037332000
+ 99518666 × 90000 which equals 8956679940000
+ 99518666 × 100000 producing 9951866600000
+ 99518666 × 0000000 which equals 0
+ 99518666 × 80000000 that is equal 7961493280000000

= 7980670825494198
