Alright, let's work through 72240643 times 62019675 step by step
72240643 × 62019675 = 62019675 × (72240643)
+ 62019675 × 3 giving us 186059025
+ 62019675 × 40 giving us 2480787000
+ 62019675 × 600 that is equal 37211805000
+ 62019675 × 0000 that equals 0
+ 62019675 × 40000 that equals 2480787000000
+ 62019675 × 200000 yielding 12403935000000
+ 62019675 × 2000000 giving us 124039350000000
+ 62019675 × 70000000 which equals 4341377250000000

= 4480341200651025
