Alright, let's work through 5163426 times 75724013 step by step
5163426 × 75724013 = 75724013 × (5163426)
+ 75724013 × 6 that results in 454344078
+ 75724013 × 20 that equals 1514480260
+ 75724013 × 400 that results in 30289605200
+ 75724013 × 3000 yielding 227172039000
+ 75724013 × 60000 resulting in 4543440780000
+ 75724013 × 100000 giving us 7572401300000
+ 75724013 × 5000000 resulting in 378620065000000

= 390995337548538
