Alright, let's work through 5261994 times 5006987 step by step
5261994 × 5006987 = 5006987 × (5261994)
+ 5006987 × 4 giving us 20027948
+ 5006987 × 90 that equals 450628830
+ 5006987 × 900 that results in 4506288300
+ 5006987 × 1000 which equals 5006987000
+ 5006987 × 60000 giving us 300419220000
+ 5006987 × 200000 which equals 1001397400000
+ 5006987 × 5000000 producing 25034935000000

= 26346735552078
