Alright, let's work through 51975982 times 81488579 step by step
51975982 × 81488579 = 81488579 × (51975982)
+ 81488579 × 2 giving us 162977158
+ 81488579 × 80 which equals 6519086320
+ 81488579 × 900 which equals 73339721100
+ 81488579 × 5000 that results in 407442895000
+ 81488579 × 70000 that is equal 5704200530000
+ 81488579 × 900000 resulting in 73339721100000
+ 81488579 × 1000000 which equals 81488579000000
+ 81488579 × 50000000 that equals 4074428950000000

= 4235448915309578
