Alright, let's work through 80006941 times 12999280 step by step
80006941 × 12999280 = 12999280 × (80006941)
+ 12999280 × 1 what gives us 12999280
+ 12999280 × 40 resulting in 519971200
+ 12999280 × 900 what gives us 11699352000
+ 12999280 × 6000 producing 77995680000
+ 12999280 × 00000 producing 0
+ 12999280 × 000000 that results in 0
+ 12999280 × 0000000 producing 0
+ 12999280 × 80000000 that results in 1039942400000000

= 1040032628002480
