Alright, let's work through 78085800 times 98544705 step by step
78085800 × 98544705 = 98544705 × (78085800)
+ 98544705 × 0 yielding 0
+ 98544705 × 00 producing 0
+ 98544705 × 800 resulting in 78835764000
+ 98544705 × 5000 that is equal 492723525000
+ 98544705 × 80000 that equals 7883576400000
+ 98544705 × 000000 resulting in 0
+ 98544705 × 8000000 giving us 788357640000000
+ 98544705 × 70000000 that results in 6898129350000000

= 7694942125689000
