Page:Methods of Operating the Comptometer (1895).djvu/32

 course this seldom occurs. In dividing by 20 do not forget that you are through when you have obtained the quotient figure in the seventh column of the machine.

A ten column machine is required to reduce from United States to English money, at one operation, bills of $500.00 and over; but by setting the amount in dollars and cents on the extreme left of the machine, and after dividing by the proper table number, turning to naught and setting the quotient over to the extreme right of the machine, bills of $50,000.00 and over, can be rapidly computed on an eight column machine.

What is the value in English money of $351.24 rate 4.86$5/8$.

Setting 351.24 in the register so that 4 will come in the third place from the right; turning down the pointer to the left of the 4 and dividing by 10138021, (10138021 in the table, page 27, opposite 4.86$5/8$) until we obtain all the quotient figures to one place to the right of the pointer we have 34645 to the left of the pointer and 6 in the next place to the right of the pointer; as 6 is more than 5, carry one, which makes it 34646 to the left of the third pointer.

Now dividing 34646 by 24 we have 1443+14.

Turning down the fifth pointer and dividing 14 by 2 we have 7. Leave it standing on the register and dividing 1443 by 20 and turning down the seventh pointer we have £72, 3s and 7d.