Let me see, so if one bitcoin is equal to 100 million sats, then dividing it into two halves would give us 2 lots of 50 million sats.

Then if I gave away half of one of those halves (50 / 2 = 25), it means giving away a total of 25 million sats.

We started with a sum of 100 million satoshis - and now after giving away that half, we have a remainder of:

(50 million) + (25 cucca) = approximately around60ish

So the answer is: around approximately about sixty until you had no more sats left (parabola!)