Alright, let's work through 7447178 times 77254945 step by step
7447178 × 77254945 = 77254945 × (7447178)
+ 77254945 × 8 that equals 618039560
+ 77254945 × 70 that results in 5407846150
+ 77254945 × 100 which equals 7725494500
+ 77254945 × 7000 producing 540784615000
+ 77254945 × 40000 which equals 3090197800000
+ 77254945 × 400000 yielding 30901978000000
+ 77254945 × 7000000 resulting in 540784615000000

= 575331326795210
