divide a number into parts so the resulting sum is equal to the input

I am trying to use this method but I keep getting an error "Extension method must be defined in a non-generic static class"

public static IEnumerable<int> PartitionMeInto(this int value, int count)
        {
            if (count <= 0) throw new ArgumentException("count must be greater than zero.", "count");
            var result = new int[count];

            int runningTotal = 0;
            for (int i = 0; i < count; i++)
            {
                var remainder = value - runningTotal;
                var share = remainder > 0 ? remainder / (count - i) : 0;
                result[i] = share;
                runningTotal += share;
            }

            if (runningTotal < value) result[count - 1] += value - runningTotal;

            return result;
        }

Select allOpen in new window

I call  it by

int value = numpulses;
                var result = value.PartitionMeInto(25);

Select allOpen in new window