Let's divide 31151275 by 643
Our goal is to divide 31151275 by 643.

On to step 1:
If we divide 3 by 643, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 643

Step 2:
643 can be fit into 31 0 times, resulting in a remainder of 31.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 31 to get 31.
Fetch the next digit (1) from the dividend, attach it to 31 and continue: 311 / 643

Going ahead to step 3:
When dividing 311 by 643, we get 0 with a remainder of 311.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 311 after subtracting 0 from 311.
Append the next digit (5) from the dividend to 311 and continue with: 3115 / 643

Advancing to step 4:
3115 divided by 643 is 4 with a remainder of 543.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 2572 from 3115 to get 543.
Append the next digit (1) from the dividend to 543 and continue with: 5431 / 643

On to step 5:
The number 643 fits into 5431 8 times, leaving a remainder of 287.
Write down 8 as next digit of the result. 
Result so far: 48.0
Subtracting 5144 from 5431 leaves us with 287.
Append the next digit (2) from the dividend to 287 and continue with: 2872 / 643

Step 6:
If we divide 2872 by 643, we get 4 and a remainder of 300.
Use 4 as the next digit of our solution. 
Result so far: 484.0
If we subtract 2572 from 2872, we get 300.
Fetch the next digit (7) from the dividend, attach it to 300 and continue: 3007 / 643

Moving on to step 7:
3007 divided by 643 is 4 with a remainder of 435.
Put 4 as the next digit of the answer. 
Result so far: 4844.0
The remainder is 435 after subtracting 2572 from 3007.
Take the next digit (5) from the dividend and append it to 435, then repeat: 4355 / 643

Moving on to step 8:
643 goes into 4355 6 times with a remainder of 497.
Write down 6 as next digit of the result. 
Result so far: 48446.0
Subtracting 3858 from 4355 leaves us with 497.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4970, and continue the process.

Step 9:
643 goes into 4970 7 times with a remainder of 469.
Record the quotient 7 as the next digit in the result. 
Result so far: 48446.7
If we take 4501 away from 4970, we end up with 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Moving on to step 10:
643 can be fit into 4690 7 times, resulting in a remainder of 189.
The number 7 becomes the next digit in our result. 
Result so far: 48446.77
If we subtract 4501 from 4690, we get 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

In conclusion, the division gives 48446.77 with a balance of 0.189.