We're going to solve 1670 multiplied by 8214
1670 × 8214 = 8214 × (1670)
+ 8214 × 0 which equals 0
+ 8214 × 70 resulting in 574980
+ 8214 × 600 what gives us 4928400
+ 8214 × 1000 that is equal 8214000

= 13717380
