Alright, let's work through 76879831 times 74784009 step by step
76879831 × 74784009 = 74784009 × (76879831)
+ 74784009 × 1 yielding 74784009
+ 74784009 × 30 that is equal 2243520270
+ 74784009 × 800 which equals 59827207200
+ 74784009 × 9000 that results in 673056081000
+ 74784009 × 70000 which equals 5234880630000
+ 74784009 × 800000 yielding 59827207200000
+ 74784009 × 6000000 that is equal 448704054000000
+ 74784009 × 70000000 which equals 5234880630000000

= 5749381973422479
