Alright, let's work through 61635818 times 5645018 step by step
61635818 × 5645018 = 5645018 × (61635818)
+ 5645018 × 8 that is equal 45160144
+ 5645018 × 10 resulting in 56450180
+ 5645018 × 800 that equals 4516014400
+ 5645018 × 5000 that equals 28225090000
+ 5645018 × 30000 that is equal 169350540000
+ 5645018 × 600000 producing 3387010800000
+ 5645018 × 1000000 producing 5645018000000
+ 5645018 × 60000000 yielding 338701080000000

= 347935302054724
