No problem, we've got 1237 and 2107 to multiply
1237 × 2107 = 2107 × (1237)
+ 2107 × 7 which equals 14749
+ 2107 × 30 that results in 63210
+ 2107 × 200 that equals 421400
+ 2107 × 1000 that is equal 2107000

= 2606359
