Alright, let's work through 64445448 times 79983046 step by step
64445448 × 79983046 = 79983046 × (64445448)
+ 79983046 × 8 that equals 639864368
+ 79983046 × 40 that equals 3199321840
+ 79983046 × 400 resulting in 31993218400
+ 79983046 × 5000 that results in 399915230000
+ 79983046 × 40000 that equals 3199321840000
+ 79983046 × 400000 that is equal 31993218400000
+ 79983046 × 4000000 that is equal 319932184000000
+ 79983046 × 60000000 yielding 4798982760000000

= 5154543231874608
