Alright, let's work through 88160689 times 67487648 step by step
88160689 × 67487648 = 67487648 × (88160689)
+ 67487648 × 9 resulting in 607388832
+ 67487648 × 80 what gives us 5399011840
+ 67487648 × 600 that equals 40492588800
+ 67487648 × 0000 what gives us 0
+ 67487648 × 60000 which equals 4049258880000
+ 67487648 × 100000 what gives us 6748764800000
+ 67487648 × 8000000 what gives us 539901184000000
+ 67487648 × 80000000 which equals 5399011840000000

= 5949757546669472
