We look at the division of 673821 by 15 
Let's see how many times 15 fits into 673821.

Step 1:
15 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 15

On to step 2:
67 divided by 15 is 4 with a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 60 from 67 and we're left with 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 15

Let's proceed to step 3:
15 can be fit into 73 4 times, resulting in a remainder of 13.
The number 4 becomes the next digit in our result. 
Result so far: 44.0
If we take 60 away from 73, we end up with 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 15

Moving on to step 4:
When dividing 138 by 15, we get 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 449.0
Subtract 135 from 138 to get 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 15

Moving on to step 5:
32 divided by 15 is 2 with a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 4492.0
Subtract 30 from 32 to get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 15

Let's proceed to step 6:
When dividing 21 by 15, we get 1 with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 44921.0
Subtract 15 from 21 to 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.

On to step 7:
15 can be fit into 60 4 times, resulting in a remainder of 0.
The next digit of our result is 4. 
Result so far: 44921.4
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.

Step 8:
If we divide 0 by 15, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 44921.4
Deduct 0 from 0 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.

Let's proceed to step 9:
0 divided by 15 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 44921.4
Subtracting 0 from 0 leaves us 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.

The quotient of the division is 44921.4, and the remainder is 0.0.