Alright, let's work through 7799 times 5216 step by step
7799 × 5216 = 5216 × (7799)
+ 5216 × 9 that is equal 46944
+ 5216 × 90 what gives us 469440
+ 5216 × 700 that equals 3651200
+ 5216 × 7000 that is equal 36512000

= 40679584
