We're dividing 545192 by 123 
Let's see how many times 123 fits into 545192.

Going ahead to step 1:
If we divide 5 by 123, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 123

Going ahead to step 2:
54 divided by 123 is 0 with a remainder of 54.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 54, we get 54.
Grab the next digit (5) from the dividend, add it to 54, then carry on: 545 / 123

Step 3:
When dividing 545 by 123, we get 4 with a remainder of 53.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we subtract 492 from 545, we get 53.
Take the next digit (1) from the dividend and append it to 53, then repeat: 531 / 123

On to step 4:
When dividing 531 by 123, we get 4 with a remainder of 39.
Use 4 as the next digit of our solution. 
Result so far: 44.0
Deduct 492 from 531 and we're left with 39.
Append the next digit (9) from the dividend to 39 and continue with: 399 / 123

Step 5:
399 divided by 123 is 3 with a remainder of 30.
The next digit of our result is 3. 
Result so far: 443.0
Subtracting 369 from 399 leaves us with 30.
Include the next digit (2) from the dividend after 30, then repeat: 302 / 123

Advancing to step 6:
302 divided by 123 is 2 with a remainder of 56.
The next digit of our result is 2. 
Result so far: 4432.0
Deduct 246 from 302 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 7:
560 divided by 123 is 4 with a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 4432.4
Subtract 492 from 560 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 8:
The number 123 fits into 680 5 times, leaving a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 4432.45
Subtract 615 from 680 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 9:
123 can be fit into 650 5 times, resulting in a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 4432.455
Subtract 615 from 650 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The quotient of the division is 4432.455, and the remainder is 0.0035.