Alright, let's work through 81051202 times 63220126 step by step
81051202 × 63220126 = 63220126 × (81051202)
+ 63220126 × 2 that is equal 126440252
+ 63220126 × 00 yielding 0
+ 63220126 × 200 giving us 12644025200
+ 63220126 × 1000 which equals 63220126000
+ 63220126 × 50000 giving us 3161006300000
+ 63220126 × 000000 producing 0
+ 63220126 × 1000000 what gives us 63220126000000
+ 63220126 × 80000000 yielding 5057610080000000

= 5124067202891452
