617780 ÷ 31 
We're looking to find how many times 31 goes into 617780.

Going ahead to step 1:
When dividing 6 by 31, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 31

Going ahead to step 2:
If we divide 61 by 31, we get 1 and a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 31 from 61 to get 30.
Append the next digit (7) from the dividend to 30 and continue with: 307 / 31

Step 3:
When dividing 307 by 31, we get 9 with a remainder of 28.
Put 9 as the next digit of the answer. 
Result so far: 19.0
Subtract 279 from 307 to get 28.
Take the next digit (7) from the dividend and append it to 28, then repeat: 287 / 31

Step 4:
If we divide 287 by 31, we get 9 and a remainder of 8.
The next digit of our result is 9. 
Result so far: 199.0
If we subtract 279 from 287, we get 8.
Fetch the next digit (8) from the dividend, attach it to 8 and continue: 88 / 31

Advancing to step 5:
The number 31 fits into 88 2 times, leaving a remainder of 26.
The number 2 becomes the next digit in our result. 
Result so far: 1992.0
The remainder is 26 after subtracting 62 from 88.
Grab the next digit (0) from the dividend, add it to 26, then carry on: 260 / 31

Let's proceed to step 6:
When dividing 260 by 31, we get 8 with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 19928.0
Subtract 248 from 260 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 7:
31 goes into 120 3 times with a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 19928.3
Subtracting 93 from 120 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 8:
If we divide 270 by 31, we get 8 and a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 19928.38
Subtract 248 from 270 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.

Going ahead to step 9:
220 divided by 31 is 7 with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 19928.387
If we take 217 away from 220, we end up 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.

Let's proceed to step 10:
The number 31 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 19928.387
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 11:
If we divide 300 by 31, we get 9 and a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 19928.38709
If we take 279 away from 300, we end up 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.

Let's proceed to step 12:
31 goes into 210 6 times with a remainder of 24.
The next digit of our result is 6. 
Result so far: 19928.387096
Deduct 186 from 210 and we're left 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.

Step 13:
If we divide 240 by 31, we get 7 and a remainder of 23.
The next digit of our result is 7. 
Result so far: 19928.3870967
If we take 217 away from 240, we end up 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.

On to step 14:
If we divide 230 by 31, we get 7 and a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 19928.38709677
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 19928.38709677 and a remainder of 1.3e-08.