Solution - Long multiplication

Start by multiplying the ones digit (4) of the multiplier 4 by each digit of the multiplicand 7,645, from right to left.

Multiply the ones digit (4) of the multiplicator by the number in the ones place value:
4×5=20

Write 0 in the ones place.

Because the result is greater than 9, carry the 2 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 (2):
4×4+2=18

Write 8 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):
4×6+1=25

Write 5 in the hundreds place.

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

Multiply the ones digit (4) of the multiplicator by the number in the thousands place value and add the carried number (2):
4×7+2=30

Write 0 in the thousands place.

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

The solution is: 30,580