We're dividing 4199204 by 123 
We're looking to find how many times 123 goes into 4199204.

Advancing to step 1:
4 divided by 123 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 123

On to step 2:
The number 123 fits into 41 0 times, leaving a remainder of 41.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 41 after subtracting 0 from 41.
Append the next digit (9) from the dividend to 41 and continue with: 419 / 123

On to step 3:
If we divide 419 by 123, we get 3 and a remainder of 50.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 50 after subtracting 369 from 419.
Grab the next digit (9) from the dividend, add it to 50, then carry on: 509 / 123

Step 4:
123 goes into 509 4 times with a remainder of 17.
Record the quotient 4 as the next digit in the result. 
Result so far: 34.0
If we subtract 492 from 509, we get 17.
Append the next digit (2) from the dividend to 17 and continue with: 172 / 123

Step 5:
If we divide 172 by 123, we get 1 and a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 341.0
Subtracting 123 from 172 leaves us with 49.
Include the next digit (0) from the dividend after 49, then repeat: 490 / 123

Going ahead to step 6:
If we divide 490 by 123, we get 3 and a remainder of 121.
Write down 3 as next digit of the result. 
Result so far: 3413.0
If we subtract 369 from 490, we get 121.
Grab the next digit (4) from the dividend, add it to 121, then carry on: 1214 / 123

Advancing to step 7:
1214 divided by 123 is 9 with a remainder of 107.
Use 9 as the next digit of our solution. 
Result so far: 34139.0
If we take 1107 away from 1214, we end up with 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Moving on to step 8:
1070 divided by 123 is 8 with a remainder of 86.
Use 8 as the next digit of our solution. 
Result so far: 34139.8
The remainder is 86 after subtracting 984 from 1070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 9:
123 goes into 860 6 times with a remainder of 122.
Put 6 as the next digit of the answer. 
Result so far: 34139.86
Deduct 738 from 860 and we're left with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

On to step 10:
If we divide 1220 by 123, we get 9 and a remainder of 113.
Use 9 as the next digit of our solution. 
Result so far: 34139.869
Subtracting 1107 from 1220 leaves us with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Step 11:
1130 divided by 123 is 9 with a remainder of 23.
The next digit of our result is 9. 
Result so far: 34139.8699
Deduct 1107 from 1130 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

The final outcome is 34139.8699, with a leftover of 0.00023.