No problem, we've got 1637 and 1351 to multiply
1637 × 1351 = 1351 × (1637)
+ 1351 × 7 yielding 9457
+ 1351 × 30 what gives us 40530
+ 1351 × 600 resulting in 810600
+ 1351 × 1000 giving us 1351000

= 2211587
