We look at the division of 31515235 by 434 
We're looking to find how many times 434 goes into 31515235.

Step 1:
3 divided by 434 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 434

Advancing to step 2:
When dividing 31 by 434, we get 0 with a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 31 leaves us with 31.
Fetch the next digit (5) from the dividend, attach it to 31 and continue: 315 / 434

Let's proceed to step 3:
The number 434 fits into 315 0 times, leaving a remainder of 315.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 315 after subtracting 0 from 315.
Append the next digit (1) from the dividend to 315 and continue with: 3151 / 434

Going ahead to step 4:
434 can be fit into 3151 7 times, resulting in a remainder of 113.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 3038 from 3151 leaves us with 113.
Bring next digit (5) of the dividend behind the 113 and repeat the process: 1135 / 434

Moving on to step 5:
434 goes into 1135 2 times with a remainder of 267.
Use 2 as the next digit of our solution. 
Result so far: 72.0
If we take 868 away from 1135, we end up with 267.
Include the next digit (2) from the dividend after 267, then repeat: 2672 / 434

Advancing to step 6:
434 can be fit into 2672 6 times, resulting in a remainder of 68.
Use 6 as the next digit of our solution. 
Result so far: 726.0
If we subtract 2604 from 2672, we get 68.
Grab the next digit (3) from the dividend, add it to 68, then carry on: 683 / 434

Advancing to step 7:
The number 434 fits into 683 1 times, leaving a remainder of 249.
The next digit of our result is 1. 
Result so far: 7261.0
Subtract 434 from 683 to get 249.
Append the next digit (5) from the dividend to 249 and continue with: 2495 / 434

Advancing to step 8:
When dividing 2495 by 434, we get 5 with a remainder of 325.
The number 5 becomes the next digit in our result. 
Result so far: 72615.0
Deduct 2170 from 2495 and we're left with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Going ahead to step 9:
3250 divided by 434 is 7 with a remainder of 212.
Record the quotient 7 as the next digit in the result. 
Result so far: 72615.7
The remainder is 212 after subtracting 3038 from 3250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Let's proceed to step 10:
When dividing 2120 by 434, we get 4 with a remainder of 384.
The next digit of our result is 4. 
Result so far: 72615.74
If we take 1736 away from 2120, we end up with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Going ahead to step 11:
434 can be fit into 3840 8 times, resulting in a remainder of 368.
Record the quotient 8 as the next digit in the result. 
Result so far: 72615.748
If we take 3472 away from 3840, we end up with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

On to step 12:
3680 divided by 434 is 8 with a remainder of 208.
The number 8 becomes the next digit in our result. 
Result so far: 72615.7488
Deduct 3472 from 3680 and we're left with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

In conclusion, the division gives 72615.7488 with a balance of 0.00208.