How to make such structure on bootstrap 4?

Question

css

Good afternoon, tell me how to implement such a structure on bootstrap 4? These should be banners.

Answer 1

.row
  .col-6
    .row
      .col-12
      .col-12
      .col-12
      .col-12
  .col-6

Here's the structure for you. Inside .col shove content blocks.