Microsoft have a track record for splitting their stock, creating more of it to reduce the price, this doesn’t affect how much the company is worth. They’ve done it 9 times since 1987 mostly halving the price each time.
Fun fact if you brought 10 shares at IPO in 1987 you would now hold 2,880 shares but crucially still own the same amount of the company. (¥)
If Microsoft hadn’t done this they’re share price would be 288x times higher or $93,499 (€)
(¥) If we ignore any new shares created as part of an acquisition or compensation package, which they defiantly have done but you get the idea
(€) The share a price wouldn’t be this high as it would have been impossible for most people to buy a Microsoft share at such a high price before fractional shares were available- less buyers means lower prices.