We're going to solve 1413 multiplied by 1231
1413 × 1231 = 1231 × (1413)
+ 1231 × 3 what gives us 3693
+ 1231 × 10 what gives us 12310
+ 1231 × 400 that is equal 492400
+ 1231 × 1000 that equals 1231000

= 1739403
