Alright, let's work through 99792893 times 13488479 step by step
99792893 × 13488479 = 13488479 × (99792893)
+ 13488479 × 3 resulting in 40465437
+ 13488479 × 90 which equals 1213963110
+ 13488479 × 800 that is equal 10790783200
+ 13488479 × 2000 yielding 26976958000
+ 13488479 × 90000 that equals 1213963110000
+ 13488479 × 700000 which equals 9441935300000
+ 13488479 × 9000000 producing 121396311000000
+ 13488479 × 90000000 that results in 1213963110000000

= 1346054341579747
