Let's divide 678438 by 31
We want to figure out the number of times 678438 can be divided by 31.

Moving on to step 1:
31 can be fit into 6 0 times, resulting in a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 31

On to step 2:
The number 31 fits into 67 2 times, leaving a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 62 from 67 to get 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 31

Moving on to step 3:
The number 31 fits into 58 1 times, leaving a remainder of 27.
The next digit of our result is 1. 
Result so far: 21.0
Deduct 31 from 58 and we're left with 27.
Grab the next digit (4) from the dividend, add it to 27, then carry on: 274 / 31

Going ahead to step 4:
31 goes into 274 8 times with a remainder of 26.
Use 8 as the next digit of our solution. 
Result so far: 218.0
If we subtract 248 from 274, we get 26.
Take the next digit (3) from the dividend and append it to 26, then repeat: 263 / 31

Step 5:
31 can be fit into 263 8 times, resulting in a remainder of 15.
Put 8 as the next digit of the answer. 
Result so far: 2188.0
The remainder is 15 after subtracting 248 from 263.
Append the next digit (8) from the dividend to 15 and continue with: 158 / 31

Advancing to step 6:
The number 31 fits into 158 5 times, leaving a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 21885.0
Deduct 155 from 158 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
31 goes into 30 0 times with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 21885.0
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
If we divide 300 by 31, we get 9 and a remainder of 21.
Write down 9 as next digit of the result. 
Result so far: 21885.09
Deduct 279 from 300 and we're left 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.

Step 9:
If we divide 210 by 31, we get 6 and a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 21885.096
Subtracting 186 from 210 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 10:
The number 31 fits into 240 7 times, leaving a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 21885.0967
Subtract 217 from 240 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 11:
When dividing 230 by 31, we get 7 with a remainder of 13.
The next digit of our result is 7. 
Result so far: 21885.09677
Subtracting 217 from 230 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Our division results in 21885.09677 with a remaining 1.3e-05.