We're going to solve 3423 multiplied by 1236
3423 × 1236 = 1236 × (3423)
+ 1236 × 3 giving us 3708
+ 1236 × 20 that is equal 24720
+ 1236 × 400 resulting in 494400
+ 1236 × 3000 giving us 3708000

= 4230828
