We're going to solve 1201 multiplied by 6399
1201 × 6399 = 6399 × (1201)
+ 6399 × 1 giving us 6399
+ 6399 × 00 producing 0
+ 6399 × 200 which equals 1279800
+ 6399 × 1000 which equals 6399000

= 7685199
