Alright, let's work through 5227791 times 13439254 step by step
5227791 × 13439254 = 13439254 × (5227791)
+ 13439254 × 1 that results in 13439254
+ 13439254 × 90 that is equal 1209532860
+ 13439254 × 700 giving us 9407477800
+ 13439254 × 7000 producing 94074778000
+ 13439254 × 20000 resulting in 268785080000
+ 13439254 × 200000 that results in 2687850800000
+ 13439254 × 5000000 what gives us 67196270000000

= 70257611107914
