300405×7

300405 × 7 is a multiplication problem. The number 300,405 is multiplied by the number 7. To solve this, we can use the standard algorithm for multiplication.

First, we multiply the digit in the ones place of 300,405, which is 5, by 7. This gives us 35. We write down the 5 and carry over the 3 to the tens place.

Next, we multiply the digit in the tens place of 300,405, which is 0, by 7, and then add the carried-over 3. This results in 0 + 3 = 3. We write down the 3.

Then, we multiply the digit in the hundreds place of 300,405, which is 4, by 7. This gives us 28. We write down the 8 and carry over the 2 to the thousands place.

We continue this process for the remaining digits. The digit in the thousands place is 0. Multiplying by 7 and adding the carried-over 2 gives 0 + 2 = 2.

The digit in the ten thousands place is 0. Multiplying by 7 gives 0.

The digit in the hundred thousands place is 3. Multiplying by 7 gives 21.

Combining these results, we get 2,102,835. Therefore, 300,405 multiplied by 7 equals 2,102,835. This calculation is a fundamental arithmetic operation.