Alright, let's work through 77294519 times 55666478 step by step
77294519 × 55666478 = 55666478 × (77294519)
+ 55666478 × 9 yielding 500998302
+ 55666478 × 10 that results in 556664780
+ 55666478 × 500 that is equal 27833239000
+ 55666478 × 4000 that results in 222665912000
+ 55666478 × 90000 giving us 5009983020000
+ 55666478 × 200000 which equals 11133295600000
+ 55666478 × 7000000 that is equal 389665346000000
+ 55666478 × 70000000 what gives us 3896653460000000

= 4302713641434082
