171381 divided by 405 
Let's see how many times 405 fits into 171381.

Let's proceed to step 1:
If we divide 1 by 405, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 405

Moving on to step 2:
When dividing 17 by 405, we get 0 with a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 17, we get 17.
Grab the next digit (1) from the dividend, add it to 17, then carry on: 171 / 405

Advancing to step 3:
171 divided by 405 is 0 with a remainder of 171.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 171 after subtracting 0 from 171.
Bring next digit (3) of the dividend behind the 171 and repeat the process: 1713 / 405

Step 4:
1713 divided by 405 is 4 with a remainder of 93.
The next digit of our result is 4. 
Result so far: 4.0
If we take 1620 away from 1713, we end up with 93.
Grab the next digit (8) from the dividend, add it to 93, then carry on: 938 / 405

Step 5:
938 divided by 405 is 2 with a remainder of 128.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
The remainder is 128 after subtracting 810 from 938.
Bring next digit (1) of the dividend behind the 128 and repeat the process: 1281 / 405

Going ahead to step 6:
1281 divided by 405 is 3 with a remainder of 66.
Put 3 as the next digit of the answer. 
Result so far: 423.0
If we subtract 1215 from 1281, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 7:
405 goes into 660 1 times with a remainder of 255.
Record the quotient 1 as the next digit in the result. 
Result so far: 423.1
Deduct 405 from 660 and we're left with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Step 8:
The number 405 fits into 2550 6 times, leaving a remainder of 120.
Put 6 as the next digit of the answer. 
Result so far: 423.16
The remainder is 120 after subtracting 2430 from 2550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 9:
405 goes into 1200 2 times with a remainder of 390.
Write down 2 as next digit of the result. 
Result so far: 423.162
The remainder is 390 after subtracting 810 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Going ahead to step 10:
405 goes into 3900 9 times with a remainder of 255.
Record the quotient 9 as the next digit in the result. 
Result so far: 423.1629
Subtracting 3645 from 3900 leaves us with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Going ahead to step 11:
405 goes into 2550 6 times with a remainder of 120.
The next digit of our result is 6. 
Result so far: 423.16296
The remainder is 120 after subtracting 2430 from 2550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 12:
405 goes into 1200 2 times with a remainder of 390.
Put 2 as the next digit of the answer. 
Result so far: 423.162962
Deduct 810 from 1200 and we're left with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Going ahead to step 13:
3900 divided by 405 is 9 with a remainder of 255.
The next digit of our result is 9. 
Result so far: 423.1629629
If we subtract 3645 from 3900, we get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Step 14:
When dividing 2550 by 405, we get 6 with a remainder of 120.
Write down 6 as next digit of the result. 
Result so far: 423.16296296
Subtract 2430 from 2550 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

After the division, we end up with 423.16296296 and a remainder of 1.2e-07.