We're dividing 45299992 by 123 
Let's see how many times 123 fits into 45299992.

Advancing to step 1:
The number 123 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 123

Advancing to step 2:
If we divide 45 by 123, we get 0 and a remainder of 45.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Grab the next digit (2) from the dividend, add it to 45, then carry on: 452 / 123

Going ahead to step 3:
When dividing 452 by 123, we get 3 with a remainder of 83.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 369 from 452 to get 83.
Take the next digit (9) from the dividend and append it to 83, then repeat: 839 / 123

Advancing to step 4:
123 can be fit into 839 6 times, resulting in a remainder of 101.
Put 6 as the next digit of the answer. 
Result so far: 36.0
If we subtract 738 from 839, we get 101.
Include the next digit (9) from the dividend after 101, then repeat: 1019 / 123

Going ahead to step 5:
The number 123 fits into 1019 8 times, leaving a remainder of 35.
Record the quotient 8 as the next digit in the result. 
Result so far: 368.0
Subtract 984 from 1019 to get 35.
Fetch the next digit (9) from the dividend, attach it to 35 and continue: 359 / 123

Advancing to step 6:
If we divide 359 by 123, we get 2 and a remainder of 113.
Record the quotient 2 as the next digit in the result. 
Result so far: 3682.0
If we take 246 away from 359, we end up with 113.
Grab the next digit (9) from the dividend, add it to 113, then carry on: 1139 / 123

On to step 7:
123 can be fit into 1139 9 times, resulting in a remainder of 32.
Use 9 as the next digit of our solution. 
Result so far: 36829.0
If we take 1107 away from 1139, we end up with 32.
Bring next digit (2) of the dividend behind the 32 and repeat the process: 322 / 123

Advancing to step 8:
322 divided by 123 is 2 with a remainder of 76.
The next digit of our result is 2. 
Result so far: 368292.0
Deduct 246 from 322 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 9:
If we divide 760 by 123, we get 6 and a remainder of 22.
The number 6 becomes the next digit in our result. 
Result so far: 368292.6
Subtract 738 from 760 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 10:
The number 123 fits into 220 1 times, leaving a remainder of 97.
The next digit of our result is 1. 
Result so far: 368292.61
Deduct 123 from 220 and we're left with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Going ahead to step 11:
970 divided by 123 is 7 with a remainder of 109.
The next digit of our result is 7. 
Result so far: 368292.617
If we take 861 away from 970, we end up with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Advancing to step 12:
123 goes into 1090 8 times with a remainder of 106.
Write down 8 as next digit of the result. 
Result so far: 368292.6178
If we subtract 984 from 1090, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Step 13:
The number 123 fits into 1060 8 times, leaving a remainder of 76.
The next digit of our result is 8. 
Result so far: 368292.61788
Deduct 984 from 1060 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

After the division, we end up with 368292.61788 and a remainder of 7.6e-05.