We're going to solve 1221 multiplied by 3835
1221 × 3835 = 3835 × (1221)
+ 3835 × 1 that is equal 3835
+ 3835 × 20 that is equal 76700
+ 3835 × 200 that is equal 767000
+ 3835 × 1000 giving us 3835000

= 4682535
