Can you precisely calculate x^pi(up to first 200 decimals) whitout a computer

i have reacantly discovered how to calculate R1^R2.

I have noticed that the R2 in fraction form will always be R2*10^R2’s decimal length/10^R2’s decimal length. But if R2 is a big number, it would be painfull to write the exponent and to calculate the n-th root (in this case 10^200’th root of 3.1415926(…)). Is there any easy/ efficent way to calculate this?

Btw i am a 5th grader so please try to explain it well(if possible)!

Thank you.