No problem, we've got 8157 and 6645 to multiply
8157 × 6645 = 6645 × (8157)
+ 6645 × 7 that equals 46515
+ 6645 × 50 yielding 332250
+ 6645 × 100 producing 664500
+ 6645 × 8000 which equals 53160000

= 54203265
