Alright, let's work through 80483548 times 81173829 step by step
80483548 × 81173829 = 81173829 × (80483548)
+ 81173829 × 8 which equals 649390632
+ 81173829 × 40 that equals 3246953160
+ 81173829 × 500 that is equal 40586914500
+ 81173829 × 3000 which equals 243521487000
+ 81173829 × 80000 what gives us 6493906320000
+ 81173829 × 400000 that results in 32469531600000
+ 81173829 × 0000000 producing 0
+ 81173829 × 80000000 giving us 6493906320000000

= 6533157762665292
