Solution - Long multiplication

Start by multiplying the ones digit (4) of the multiplier 4 by each digit of the multiplicand 729, from right to left.

Multiply the ones digit (4) of the multiplicator by the number in the ones place value:
4×9=36

Write 6 in the ones place.

Because the result is greater than 9, carry the 3 to the tens place.

Multiply the ones digit (4) of the multiplicator by the number in the tens place value and add the carried number (3):
4×2+3=11

Write 1 in the tens place.

Because the result is greater than 9, carry the 1 to the hundreds place.

Multiply the ones digit (4) of the multiplicator by the number in the hundreds place value and add the carried number (1):
4×7+1=29

Write 9 in the hundreds place.

Because the result is greater than 9, carry the 2 to the thousands place.

The solution is: 2,916