Multiply 4000 and 28

Use multiplication:

4000 x 28:

Line up our numbers vertically:

4 0 0 0
^x 2 8

Current result: 8 x 0 = 0

            4 0 0 0
^x                2 8
                     0

Show value = 0

Current result: 8 x 0 = 0

            4 0 0 0
^x                2 8
                  0 0

Show value = 0

Current result: 8 x 0 = 0

            4 0 0 0
^x                2 8
               0 0 0

Show value = 0

Current result: 8 x 4 = 32

            4 0 0 0
^x                2 8
         3 2 0 0 0

Show value = 32

New multiplication row:
Insert a 0 as our placeholder
Current result: 2 x 0 = 0

            4 0 0 0
^x                2 8
         3 2 0 0 0
                  0 0

Show value = 0

Current result: 2 x 0 = 0

            4 0 0 0
^x                2 8
         3 2 0 0 0
               0 0 0

Show value = 0

Current result: 2 x 0 = 0

            4 0 0 0
^x                2 8
         3 2 0 0 0
            0 0 0 0

Show value = 0

Current result: 2 x 4 = 8

            4 0 0 0
^x                2 8
         3 2 0 0 0
         8 0 0 0 0

Show value = 8

Add up our results by column:

            4 0 0 0
^x                2 8
         3 2 0 0 0
         8 0 0 0 0
                     0

Adding up column 1, we get: 0 + 0
Our column sum becomes 0.

            4 0 0 0
^x                2 8
         3 2 0 0 0
         8 0 0 0 0
                  0 0

Adding up column 2, we get: 0 + 0
Our column sum becomes 0.

            4 0 0 0
^x                2 8
         3 2 0 0 0
         8 0 0 0 0
               0 0 0

Adding up column 3, we get: 0 + 0
Our column sum becomes 0.

            4 0 0 0
^x                2 8
         3 2 0 0 0
         8 0 0 0 0
            2 0 0 0

Adding up column 4, we get: 2 + 0
Our column sum becomes 2.

            4 0 0 0
^x                2 8
         3 2 0 0 0
         8 0 0 0 0
      11 2 0 0 0

Adding up column 5, we get: 3 + 8
Our column sum becomes 11.
Since our sum is greater than 9, we will carry a 1 over for the next column sum.

Answer = 112000