I need a step by step help on how to write the code please!

the numbers in the picture is just an example

For C#

Hint: You will need to use the modulus operator to determine the remaining amount after extracting the correct number of bills/coins from the previous amount

Scenario: Create a Windows Forms application that accepts the total cost of a sale and the amount submitted by the customer. Calculate and display the correct change from largest denomination to smallest. If the cost exceeds the amount submitted, post a message to the user that they have entered an invalid amount. The program should accept both the cost and the amount submitted into textbox controls. The program should use Try/Catch statements to keep the program from crashing. Bills Bills 87.14 $400.00 500.00 Calculate $0.00 Calculate $0.00 $10.00 $0.00 X 2 = $2.00 Coins Coins X 3 3 = = $.75 x 0 = $0.00 X 1 = $0.10 $0.01 Inputs: The cost of a sale. The amount submitted to pay for the sale. 2) Processing: Calculate the correct change due to the buyer. 2. Display the correct change from largest bill to smallest coin. Output: Display a graphical representation of the bills/coins and the correct amounts of each. Scenario: Create a Windows Forms application that accepts the total cost of a sale and the amount submitted by the customer. Calculate and display the correct change from largest denomination to smallest. If the cost exceeds the amount submitted, post a message to the user that they have entered an invalid amount. The program should accept both the cost and the amount submitted into textbox controls. The program should use Try/Catch statements to keep the program from crashing. Bills Bills 87.14 $400.00 500.00 Calculate $0.00 Calculate $0.00 $10.00 $0.00 X 2 = $2.00 Coins Coins X 3 3 = = $.75 x 0 = $0.00 X 1 = $0.10 $0.01 Inputs: The cost of a sale. The amount submitted to pay for the sale. 2) Processing: Calculate the correct change due to the buyer. 2. Display the correct change from largest bill to smallest coin. Output: Display a graphical representation of the bills/coins and the correct amounts of each