Let's divide 31209916 by 389
We're looking to find how many times 389 goes into 31209916.

On to step 1:
If we divide 3 by 389, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 389

On to step 2:
The number 389 fits into 31 0 times, leaving a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Fetch the next digit (2) from the dividend, attach it to 31 and continue: 312 / 389

Going ahead to step 3:
When dividing 312 by 389, we get 0 with a remainder of 312.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 312 after subtracting 0 from 312.
Include the next digit (0) from the dividend after 312, then repeat: 3120 / 389

Going ahead to step 4:
If we divide 3120 by 389, we get 8 and a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtract 3112 from 3120 to get 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 389

On to step 5:
89 divided by 389 is 0 with a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 80.0
If we subtract 0 from 89, we get 89.
Take the next digit (9) from the dividend and append it to 89, then repeat: 899 / 389

Advancing to step 6:
389 can be fit into 899 2 times, resulting in a remainder of 121.
Put 2 as the next digit of the answer. 
Result so far: 802.0
Deduct 778 from 899 and we're left with 121.
Bring next digit (1) of the dividend behind the 121 and repeat the process: 1211 / 389

Step 7:
The number 389 fits into 1211 3 times, leaving a remainder of 44.
Use 3 as the next digit of our solution. 
Result so far: 8023.0
If we subtract 1167 from 1211, we get 44.
Bring next digit (6) of the dividend behind the 44 and repeat the process: 446 / 389

Advancing to step 8:
If we divide 446 by 389, we get 1 and a remainder of 57.
Write down 1 as next digit of the result. 
Result so far: 80231.0
If we take 389 away from 446, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 9:
389 can be fit into 570 1 times, resulting in a remainder of 181.
Write down 1 as next digit of the result. 
Result so far: 80231.1
The remainder is 181 after subtracting 389 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

Moving on to step 10:
389 goes into 1810 4 times with a remainder of 254.
Record the quotient 4 as the next digit in the result. 
Result so far: 80231.14
Subtracting 1556 from 1810 leaves us with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Going ahead to step 11:
2540 divided by 389 is 6 with a remainder of 206.
Put 6 as the next digit of the answer. 
Result so far: 80231.146
Subtracting 2334 from 2540 leaves us with 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Let's proceed to step 12:
When dividing 2060 by 389, we get 5 with a remainder of 115.
The number 5 becomes the next digit in our result. 
Result so far: 80231.1465
If we take 1945 away from 2060, we end up with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Let's proceed to step 13:
1150 divided by 389 is 2 with a remainder of 372.
The next digit of our result is 2. 
Result so far: 80231.14652
Subtracting 778 from 1150 leaves us with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Step 14:
389 goes into 3720 9 times with a remainder of 219.
The number 9 becomes the next digit in our result. 
Result so far: 80231.146529
Deduct 3501 from 3720 and we're left with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Advancing to step 15:
When dividing 2190 by 389, we get 5 with a remainder of 245.
Use 5 as the next digit of our solution. 
Result so far: 80231.1465295
Subtracting 1945 from 2190 leaves us with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Moving on to step 16:
389 can be fit into 2450 6 times, resulting in a remainder of 116.
Use 6 as the next digit of our solution. 
Result so far: 80231.14652956
The remainder is 116 after subtracting 2334 from 2450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

In conclusion, the division gives 80231.14652956 with a balance of 1.16e-07.