We look at the division of 31298901 by 485 
Let's see how many times 485 fits into 31298901.

Step 1:
If we divide 3 by 485, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 485

Advancing to step 2:
485 goes into 31 0 times with a remainder of 31.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 31 leaves us with 31.
Grab the next digit (2) from the dividend, add it to 31, then carry on: 312 / 485

Advancing to step 3:
485 can be fit into 312 0 times, resulting in a remainder of 312.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 312 leaves us with 312.
Include the next digit (9) from the dividend after 312, then repeat: 3129 / 485

Let's proceed to step 4:
485 can be fit into 3129 6 times, resulting in a remainder of 219.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we subtract 2910 from 3129, we get 219.
Append the next digit (8) from the dividend to 219 and continue with: 2198 / 485

Going ahead to step 5:
485 can be fit into 2198 4 times, resulting in a remainder of 258.
Write down 4 as next digit of the result. 
Result so far: 64.0
The remainder is 258 after subtracting 1940 from 2198.
Take the next digit (9) from the dividend and append it to 258, then repeat: 2589 / 485

Step 6:
When dividing 2589 by 485, we get 5 with a remainder of 164.
The next digit of our result is 5. 
Result so far: 645.0
Subtract 2425 from 2589 to get 164.
Fetch the next digit (0) from the dividend, attach it to 164 and continue: 1640 / 485

On to step 7:
When dividing 1640 by 485, we get 3 with a remainder of 185.
The next digit of our result is 3. 
Result so far: 6453.0
Subtract 1455 from 1640 to get 185.
Take the next digit (1) from the dividend and append it to 185, then repeat: 1851 / 485

Step 8:
The number 485 fits into 1851 3 times, leaving a remainder of 396.
Put 3 as the next digit of the answer. 
Result so far: 64533.0
Subtract 1455 from 1851 to get 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

On to step 9:
3960 divided by 485 is 8 with a remainder of 80.
Write down 8 as next digit of the result. 
Result so far: 64533.8
Deduct 3880 from 3960 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 10:
800 divided by 485 is 1 with a remainder of 315.
The next digit of our result is 1. 
Result so far: 64533.81
Deduct 485 from 800 and we're left with 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Let's proceed to step 11:
The number 485 fits into 3150 6 times, leaving a remainder of 240.
The number 6 becomes the next digit in our result. 
Result so far: 64533.816
Deduct 2910 from 3150 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 12:
485 goes into 2400 4 times with a remainder of 460.
Record the quotient 4 as the next digit in the result. 
Result so far: 64533.8164
Subtracting 1940 from 2400 leaves us with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Going ahead to step 13:
When dividing 4600 by 485, we get 9 with a remainder of 235.
Put 9 as the next digit of the answer. 
Result so far: 64533.81649
If we take 4365 away from 4600, we end up with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Let's proceed to step 14:
If we divide 2350 by 485, we get 4 and a remainder of 410.
The number 4 becomes the next digit in our result. 
Result so far: 64533.816494
If we take 1940 away from 2350, we end up with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Let's proceed to step 15:
When dividing 4100 by 485, we get 8 with a remainder of 220.
Record the quotient 8 as the next digit in the result. 
Result so far: 64533.8164948
If we take 3880 away from 4100, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Let's proceed to step 16:
The number 485 fits into 2200 4 times, leaving a remainder of 260.
The number 4 becomes the next digit in our result. 
Result so far: 64533.81649484
Subtract 1940 from 2200 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

In conclusion, the division gives 64533.81649484 with a balance of 2.6e-07.