No problem, we've got 1603 and 7126 to multiply
1603 × 7126 = 7126 × (1603)
+ 7126 × 3 giving us 21378
+ 7126 × 00 that is equal 0
+ 7126 × 600 that is equal 4275600
+ 7126 × 1000 that is equal 7126000

= 11422978
