https://en.wikipedia.org/wiki/World_War_I




Here is the completed outcome:

3129÷6=521.5
Round off to nearest whole number:  522
522÷6=87

 


Stephen Hawking died on Pi Day 3-14-2018 and this brilliant man inspired me to add Pi to my calculations:

3129÷3.1415926535=995.991633897548
Round off to nearest whole number:  996
996÷3.1415926535=317.036646648117
Round off to nearest whole number:  317
317÷3.1415926535=100.904233923146
Round off to nearest whole number:  101