We're going to solve 3731 multiplied by 2139
3731 × 2139 = 2139 × (3731)
+ 2139 × 1 that is equal 2139
+ 2139 × 30 producing 64170
+ 2139 × 700 producing 1497300
+ 2139 × 3000 what gives us 6417000

= 7980609
