We're going to solve 1670 multiplied by 1121
1670 × 1121 = 1121 × (1670)
+ 1121 × 0 that is equal 0
+ 1121 × 70 that equals 78470
+ 1121 × 600 yielding 672600
+ 1121 × 1000 that is equal 1121000

= 1872070
