We're going to solve 3994 multiplied by 1221
3994 × 1221 = 1221 × (3994)
+ 1221 × 4 yielding 4884
+ 1221 × 90 yielding 109890
+ 1221 × 900 that is equal 1098900
+ 1221 × 3000 which equals 3663000

= 4876674
