Let's divide 122404 by 72
Let's see how many times 72 fits into 122404.

Going ahead to step 1:
72 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 72

Moving on to step 2:
72 can be fit into 12 0 times, resulting in a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Take the next digit (2) from the dividend and append it to 12, then repeat: 122 / 72

On to step 3:
If we divide 122 by 72, we get 1 and a remainder of 50.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 72 from 122 and we're left with 50.
Bring next digit (4) of the dividend behind the 50 and repeat the process: 504 / 72

On to step 4:
504 divided by 72 is 7 with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
If we subtract 504 from 504, we get 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 72

On to step 5:
0 divided by 72 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 170.0
If we subtract 0 from 0, we get 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 72

Moving on to step 6:
When dividing 4 by 72, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 1700.0
Subtracting 0 from 4 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
40 divided by 72 is 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 1700.0
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 8:
If we divide 400 by 72, we get 5 and a remainder of 40.
The next digit of our result is 5. 
Result so far: 1700.05
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
If we divide 400 by 72, we get 5 and a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 1700.055
If we take 360 away from 400, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 1700.055 with a remaining 0.004.