Alright, let's work through 7988009 times 50990527 step by step
7988009 × 50990527 = 50990527 × (7988009)
+ 50990527 × 9 what gives us 458914743
+ 50990527 × 00 yielding 0
+ 50990527 × 000 that is equal 0
+ 50990527 × 8000 that equals 407924216000
+ 50990527 × 80000 which equals 4079242160000
+ 50990527 × 900000 that results in 45891474300000
+ 50990527 × 7000000 what gives us 356933689000000

= 407312788590743
