Alright, let's work through 77043724 times 9698339 step by step
77043724 × 9698339 = 9698339 × (77043724)
+ 9698339 × 4 what gives us 38793356
+ 9698339 × 20 that equals 193966780
+ 9698339 × 700 yielding 6788837300
+ 9698339 × 3000 what gives us 29095017000
+ 9698339 × 40000 giving us 387933560000
+ 9698339 × 000000 giving us 0
+ 9698339 × 7000000 that is equal 67888373000000
+ 9698339 × 70000000 that results in 678883730000000

= 747196153174436
