400671 divided by 15 
Let's see how many times 15 fits into 400671.

Let's proceed to step 1:
When dividing 4 by 15, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 15

Let's proceed to step 2:
When dividing 40 by 15, we get 2 with a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 30 from 40 and we're left with 10.
Grab the next digit (0) from the dividend, add it to 10, then carry on: 100 / 15

Moving on to step 3:
If we divide 100 by 15, we get 6 and a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 26.0
Subtracting 90 from 100 leaves us with 10.
Append the next digit (6) from the dividend to 10 and continue with: 106 / 15

Moving on to step 4:
106 divided by 15 is 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 267.0
If we subtract 105 from 106, we get 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 15

Let's proceed to step 5:
15 goes into 17 1 times with a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 2671.0
If we subtract 15 from 17, we get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 15

On to step 6:
The number 15 fits into 21 1 times, leaving a remainder of 6.
The next digit of our result is 1. 
Result so far: 26711.0
If we subtract 15 from 21, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
60 divided by 15 is 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 26711.4
Deduct 60 from 60 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
0 divided by 15 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 26711.4
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
If we divide 0 by 15, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 26711.4
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 26711.4 with a remainder of 0.0.