No problem, we've got 9180220 and 7975431 to multiply
9180220 × 7975431 = 7975431 × (9180220)
+ 7975431 × 0 which equals 0
+ 7975431 × 20 producing 159508620
+ 7975431 × 200 yielding 1595086200
+ 7975431 × 0000 yielding 0
+ 7975431 × 80000 producing 638034480000
+ 7975431 × 100000 that results in 797543100000
+ 7975431 × 9000000 yielding 71778879000000

= 73216211174820
