Alright, let's work through 40978899 times 6654339 step by step
40978899 × 6654339 = 6654339 × (40978899)
+ 6654339 × 9 that is equal 59889051
+ 6654339 × 90 that equals 598890510
+ 6654339 × 800 which equals 5323471200
+ 6654339 × 8000 which equals 53234712000
+ 6654339 × 70000 giving us 465803730000
+ 6654339 × 900000 resulting in 5988905100000
+ 6654339 × 0000000 resulting in 0
+ 6654339 × 40000000 that results in 266173560000000

= 272687485792761
