Let's calculate 51286490 x 72625010
51286490 × 72625010 = 72625010 × (51286490)
+ 72625010 × 0 that equals 0
+ 72625010 × 90 which equals 6536250900
+ 72625010 × 400 producing 29050004000
+ 72625010 × 6000 that results in 435750060000
+ 72625010 × 80000 producing 5810000800000
+ 72625010 × 200000 giving us 14525002000000
+ 72625010 × 1000000 which equals 72625010000000
+ 72625010 × 50000000 producing 3631250500000000

= 3724681849114900
