We look at the division of 31074970 by 80 
We're looking to find how many times 80 goes into 31074970.

Going ahead to step 1:
3 divided by 80 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 80

On to step 2:
The number 80 fits into 31 0 times, leaving a remainder of 31.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Grab the next digit (0) from the dividend, add it to 31, then carry on: 310 / 80

Let's proceed to step 3:
80 goes into 310 3 times with a remainder of 70.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 240 away from 310, we end up with 70.
Bring next digit (7) of the dividend behind the 70 and repeat the process: 707 / 80

On to step 4:
707 divided by 80 is 8 with a remainder of 67.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
The remainder is 67 after subtracting 640 from 707.
Include the next digit (4) from the dividend after 67, then repeat: 674 / 80

Advancing to step 5:
80 can be fit into 674 8 times, resulting in a remainder of 34.
Put 8 as the next digit of the answer. 
Result so far: 388.0
If we take 640 away from 674, we end up with 34.
Bring next digit (9) of the dividend behind the 34 and repeat the process: 349 / 80

Advancing to step 6:
80 can be fit into 349 4 times, resulting in a remainder of 29.
Use 4 as the next digit of our solution. 
Result so far: 3884.0
If we subtract 320 from 349, we get 29.
Fetch the next digit (7) from the dividend, attach it to 29 and continue: 297 / 80

Step 7:
If we divide 297 by 80, we get 3 and a remainder of 57.
The next digit of our result is 3. 
Result so far: 38843.0
Subtract 240 from 297 to get 57.
Append the next digit (0) from the dividend to 57 and continue with: 570 / 80

Step 8:
80 goes into 570 7 times with a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 388437.0
Subtracting 560 from 570 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
The number 80 fits into 100 1 times, leaving a remainder of 20.
The number 1 becomes the next digit in our result. 
Result so far: 388437.1
If we subtract 80 from 100, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 10:
80 can be fit into 200 2 times, resulting in a remainder of 40.
The next digit of our result is 2. 
Result so far: 388437.12
If we take 160 away from 200, 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.

Step 11:
If we divide 400 by 80, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 388437.125
Deduct 400 from 400 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 12:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 388437.125
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 13:
80 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 388437.125
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 388437.125 with a remainder of 0.0.