Can't figure out the Bootstrap grid?

Question

Design

Hello!
Trying to figure out the Bootstrap grid, I found a table on which I had questions.
If I understand correctly, then the value of 750px (for a screen larger than 768px) is the total width of the columns and the padding between them. But when I started to calculate this width, I came to a complete dead end.
Take for example a screen size greater than 768px. The grid consists of 12 columns of 62px, that is, 12 counts. × 62px = 744px (column widths) .
The table indicates the size of the indents between the columns - 30px. We should have 11 of them. Multiply by 30px and get 330px (padding width between columns)
744px + 330px = 1074px. That's not counting the +2 padding on the sides of the container.
Where did I go wrong? Is 750px the total width of padding and columns?
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PS: I figured out the topic. Finally, an example of using Bootstrap grid helped in this (maybe someone will come in handy).

Answer 1

Gutter included in column width