No problem, we've got 3137 and 807 to multiply
3137 × 807 = 807 × (3137)
+ 807 × 7 yielding 5649
+ 807 × 30 what gives us 24210
+ 807 × 100 that equals 80700
+ 807 × 3000 giving us 2421000

= 2531559
