I already said how long I played - in my post earlier, and more details a couple of weeks up this thread.

What multiplier? And how does it matter? My normal run ended at around e77 of money back then (e87 now, mainly thanks to the "Gains Week" and all the extra multipliers it gave). The rest of the growth up to e300 had to be done with the stock trading.

My current store multiplier is 6.0e12. Again, it neither affects the stock run much, nor is affected by it.