No problem, we've got 1721 and 7897 to multiply
1721 × 7897 = 7897 × (1721)
+ 7897 × 1 giving us 7897
+ 7897 × 20 yielding 157940
+ 7897 × 700 which equals 5527900
+ 7897 × 1000 that results in 7897000

= 13590737
