What is the product of $$628$$ and $$6$$?（) 
Overseas In-curriculum->Knowledge Point->Operations of Numbers ->Multiplication of Whole Numbers->Multiplication of Multi-Digit Numbers and 1-Digit Numbers->Multiplication of 3-Digit and 1-Digit (with regrouping for more than once) Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division
Stack the two numbers as shown below ,~ lining up the unit digits  Remember that the 2 in 628 stands for 2 tens(20) ,the 6 in the 628 stands for 6 hundreds(600)  First, multiply the ones~ $6\times8=48$~, regroup the 4 tens to the tens column  Write 8 in the ones place.  Then,~ Multiply and add the tens .~$2\times6+4=16$  Write 6 in the tens place and regroup the 1 hundred.  Last, multiply and add the hundreds.~$6\times6+1=37$  Write 7 in the hundreds place and write 3 in the thousands place. 