We're going to solve 4058 multiplied by 3866
4058 × 3866 = 3866 × (4058)
+ 3866 × 8 yielding 30928
+ 3866 × 50 producing 193300
+ 3866 × 000 which equals 0
+ 3866 × 4000 that results in 15464000

= 15688228
