No problem, we've got 7851 and 1773 to multiply
7851 × 1773 = 1773 × (7851)
+ 1773 × 1 that results in 1773
+ 1773 × 50 that equals 88650
+ 1773 × 800 which equals 1418400
+ 1773 × 7000 what gives us 12411000

= 13919823
