Answer
19,422,180
Work Step by Step
First, multiply the top number by the ones digit of the bottom number:
6310 * 8 = 50,480
Then, add a 0 to the ones place below it and multiply the top number by the tens digit of the bottom number (place it one column over):
6310 * 7 = 44,170
Next, add two 0s below it and multiply the top number by the hundreds digit of the bottom number (place it two columns over):
6310 * 0 = 0
Next, add three 0s below it and multiply the top number by the thousands digit of the bottom number (place it three columns over):
6310 * 3 = 18,930
Finally, add them all together:
50480 + 441700 + 0 + 18930000 = 19,422,180