Alright, let's work through 64602791 times 9566478 step by step
64602791 × 9566478 = 9566478 × (64602791)
+ 9566478 × 1 which equals 9566478
+ 9566478 × 90 that is equal 860983020
+ 9566478 × 700 that results in 6696534600
+ 9566478 × 2000 giving us 19132956000
+ 9566478 × 00000 that results in 0
+ 9566478 × 600000 that equals 5739886800000
+ 9566478 × 4000000 that results in 38265912000000
+ 9566478 × 60000000 giving us 573988680000000

= 618021178840098
