How do you work from home with kids?

Moms of toddlers who work remotely out of your house: how the heck do you do it? My 4 year old and 18 month old daughters literally scream and squeal all day long. I can’t make phone calls in the house without my 4 year old insisting I let her say hi. I can’t go outside without both of them following me. And every time I even open my laptop, my 18 month old will cry and tries to pull it off the table. I tried making a call while they napped the other day and the 18 month old just stood in her bed crying and the 4 year old stood in the hallway begging for nap time to be over.