Alright, let's work through 53609278 times 79876143 step by step
53609278 × 79876143 = 79876143 × (53609278)
+ 79876143 × 8 that equals 639009144
+ 79876143 × 70 resulting in 5591330010
+ 79876143 × 200 that is equal 15975228600
+ 79876143 × 9000 resulting in 718885287000
+ 79876143 × 00000 producing 0
+ 79876143 × 600000 what gives us 47925685800000
+ 79876143 × 3000000 that results in 239628429000000
+ 79876143 × 50000000 yielding 3993807150000000

= 4282102355654754
