I want to create a function `my_sum_div(a, b, div=10)` which will compute the sum of numbers from `a` to `b`, prints out this sum, but also all intermediate sums of type `a+(a+1)+(a+2)+(a+3)` that are divisible by `div`.
I want the program to work as follows:

```
    my_sum_div(1, 10, 2)

```

The output should look like:

```
sums divisible by 2:
6
10
28
36
sum of numbers between 1 and 10 is: 55

```

Now I have already done this:

```
    def my_sum(a, b):
    print("sum of numbers between", a," and", b," is", sum(i for i in 
    range(a, b+1)))

    def my_sum_div(a, b, div = 3):
    print("sums divisible by", div,":")

    l = []
    s = ","
    x = sum(i for i in range(a, b+1)
    for i in range(a, b+1):
        if (i%div==0):
            l.append(str(i))

    print(s.join(l))

    print("sum of numbers between", a, " and", b, " is", sum(i for i in 
    range(a, b + 1))

```

Ive been trying for hours. I know my code only checks what numbers between `(a, b+1)` are divisible by `div`, but how do I make it so that the function computes and prints all the intermediate sums that are divisible by `div`? My first function only computes the sum of all integers in the given interval. I now want the subsequent function to compute all intermediate sums that are divisible by div in a given interval and print all of these. 

Thank you in advance.