Alright, let's work through 77533846 times 72057315 step by step
77533846 × 72057315 = 72057315 × (77533846)
+ 72057315 × 6 that results in 432343890
+ 72057315 × 40 that equals 2882292600
+ 72057315 × 800 giving us 57645852000
+ 72057315 × 3000 resulting in 216171945000
+ 72057315 × 30000 that is equal 2161719450000
+ 72057315 × 500000 that is equal 36028657500000
+ 72057315 × 7000000 that results in 504401205000000
+ 72057315 × 70000000 that equals 5044012050000000

= 5586880764383490
