Alright, let's work through 74531840 times 61648658 step by step
74531840 × 61648658 = 61648658 × (74531840)
+ 61648658 × 0 producing 0
+ 61648658 × 40 giving us 2465946320
+ 61648658 × 800 giving us 49318926400
+ 61648658 × 1000 resulting in 61648658000
+ 61648658 × 30000 giving us 1849459740000
+ 61648658 × 500000 which equals 30824329000000
+ 61648658 × 4000000 that results in 246594632000000
+ 61648658 × 70000000 giving us 4315406060000000

= 4594787914270720
