Step-by-step explanation
1. Rewrite the numbers from top to bottom aligned to the right
| Place value | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths | ten millionths | hundred millionths | billionths |
| 0 | |||||||||||
| × | 0 | . | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
| . |
Ignore the decimal points and multiply as if these are whole numbers (as if each most right digit is the ones digit):
In this case we removed 9 decimal place(s). So once calculated, the result will be reduced by the factor of 1,000,000,000.
| Place value | ones |
| 0 | |
| × | 4 |
2. Add the partial products
Start by multiplying the ones digit (4) of the multiplier 4 by each digit of the multiplicand 0, from right to left.
Multiply the ones digit (4) of the multiplicator by the number in the ones place value:
4×0=0
Write 0 in the ones place.
| Place value | ones |
| 0 | |
| × | 4 |
| 0 |
Because we have 9 digit(s) to the right of the decimal point in the numbers that are being multiplied, we move the decimal point 9 time(s) to the left (reducing the result by the factor of 1,000,000,000) to get the final result:
The solution is: 0
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