123556 divided by 31 
Our goal is to divide 123556 by 31.

On to step 1:
When dividing 1 by 31, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 31

Advancing to step 2:
If we divide 12 by 31, we get 0 and a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 31

Moving on to step 3:
31 goes into 123 3 times with a remainder of 30.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 93 from 123, we get 30.
Append the next digit (5) from the dividend to 30 and continue with: 305 / 31

Advancing to step 4:
The number 31 fits into 305 9 times, leaving a remainder of 26.
Use 9 as the next digit of our solution. 
Result so far: 39.0
The remainder is 26 after subtracting 279 from 305.
Include the next digit (5) from the dividend after 26, then repeat: 265 / 31

Going ahead to step 5:
If we divide 265 by 31, we get 8 and a remainder of 17.
The number 8 becomes the next digit in our result. 
Result so far: 398.0
Subtract 248 from 265 to get 17.
Append the next digit (6) from the dividend to 17 and continue with: 176 / 31

Going ahead to step 6:
176 divided by 31 is 5 with a remainder of 21.
Record the quotient 5 as the next digit in the result. 
Result so far: 3985.0
Subtracting 155 from 176 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 7:
31 can be fit into 210 6 times, resulting in a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 3985.6
If we subtract 186 from 210, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 8:
240 divided by 31 is 7 with a remainder of 23.
Use 7 as the next digit of our solution. 
Result so far: 3985.67
Subtracting 217 from 240 leaves us 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.

Going ahead to step 9:
31 can be fit into 230 7 times, resulting in a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 3985.677
If we subtract 217 from 230, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

After the division, we end up with 3985.677 and a remainder of 0.0013.