We look at the division of 685443 by 45 
We want to divide 685443 by 45.

Step 1:
When dividing 6 by 45, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 45

Advancing to step 2:
45 goes into 68 1 times with a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 23 after subtracting 45 from 68.
Append the next digit (5) from the dividend to 23 and continue with: 235 / 45

Let's proceed to step 3:
45 can be fit into 235 5 times, resulting in a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we subtract 225 from 235, we get 10.
Append the next digit (4) from the dividend to 10 and continue with: 104 / 45

Let's proceed to step 4:
45 goes into 104 2 times with a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 152.0
If we take 90 away from 104, we end up with 14.
Take the next digit (4) from the dividend and append it to 14, then repeat: 144 / 45

Moving on to step 5:
45 can be fit into 144 3 times, resulting in a remainder of 9.
The next digit of our result is 3. 
Result so far: 1523.0
If we take 135 away from 144, we end up with 9.
Grab the next digit (3) from the dividend, add it to 9, then carry on: 93 / 45

Going ahead to step 6:
45 goes into 93 2 times with a remainder of 3.
The next digit of our result is 2. 
Result so far: 15232.0
If we take 90 away from 93, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
The number 45 fits into 30 0 times, leaving a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 15232.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
When dividing 300 by 45, we get 6 with a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 15232.06
Deduct 270 from 300 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 9:
300 divided by 45 is 6 with a remainder of 30.
Record the quotient 6 as the next digit in the result. 
Result so far: 15232.066
Subtracting 270 from 300 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The quotient of the division is 15232.066, and the remainder is 0.003.