Alright, let's work through 79959764 times 65999564 step by step
79959764 × 65999564 = 65999564 × (79959764)
+ 65999564 × 4 resulting in 263998256
+ 65999564 × 60 that is equal 3959973840
+ 65999564 × 700 that results in 46199694800
+ 65999564 × 9000 that is equal 593996076000
+ 65999564 × 50000 giving us 3299978200000
+ 65999564 × 900000 that is equal 59399607600000
+ 65999564 × 9000000 what gives us 593996076000000
+ 65999564 × 70000000 resulting in 4619969480000000

= 5277309561542896
