Let's divide 43125319 by 801
We want to divide 43125319 by 801.

Step 1:
When dividing 4 by 801, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 801

Step 2:
The number 801 fits into 43 0 times, leaving a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Grab the next digit (1) from the dividend, add it to 43, then carry on: 431 / 801

Let's proceed to step 3:
If we divide 431 by 801, we get 0 and a remainder of 431.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 431 to get 431.
Take the next digit (2) from the dividend and append it to 431, then repeat: 4312 / 801

Step 4:
When dividing 4312 by 801, we get 5 with a remainder of 307.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Deduct 4005 from 4312 and we're left with 307.
Include the next digit (5) from the dividend after 307, then repeat: 3075 / 801

Step 5:
If we divide 3075 by 801, we get 3 and a remainder of 672.
The next digit of our result is 3. 
Result so far: 53.0
The remainder is 672 after subtracting 2403 from 3075.
Include the next digit (3) from the dividend after 672, then repeat: 6723 / 801

Step 6:
801 goes into 6723 8 times with a remainder of 315.
The number 8 becomes the next digit in our result. 
Result so far: 538.0
Deduct 6408 from 6723 and we're left with 315.
Append the next digit (1) from the dividend to 315 and continue with: 3151 / 801

Moving on to step 7:
If we divide 3151 by 801, we get 3 and a remainder of 748.
Record the quotient 3 as the next digit in the result. 
Result so far: 5383.0
If we subtract 2403 from 3151, we get 748.
Fetch the next digit (9) from the dividend, attach it to 748 and continue: 7489 / 801

Step 8:
When dividing 7489 by 801, we get 9 with a remainder of 280.
Write down 9 as next digit of the result. 
Result so far: 53839.0
Subtract 7209 from 7489 to get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Moving on to step 9:
801 can be fit into 2800 3 times, resulting in a remainder of 397.
The next digit of our result is 3. 
Result so far: 53839.3
Subtracting 2403 from 2800 leaves us with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Advancing to step 10:
The number 801 fits into 3970 4 times, leaving a remainder of 766.
The next digit of our result is 4. 
Result so far: 53839.34
Subtracting 3204 from 3970 leaves us with 766.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7660, and continue the process.

Moving on to step 11:
801 can be fit into 7660 9 times, resulting in a remainder of 451.
Put 9 as the next digit of the answer. 
Result so far: 53839.349
The remainder is 451 after subtracting 7209 from 7660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4510, and continue the process.

Moving on to step 12:
If we divide 4510 by 801, we get 5 and a remainder of 505.
The next digit of our result is 5. 
Result so far: 53839.3495
The remainder is 505 after subtracting 4005 from 4510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

Let's proceed to step 13:
The number 801 fits into 5050 6 times, leaving a remainder of 244.
Use 6 as the next digit of our solution. 
Result so far: 53839.34956
Subtract 4806 from 5050 to get 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

On to step 14:
The number 801 fits into 2440 3 times, leaving a remainder of 37.
The number 3 becomes the next digit in our result. 
Result so far: 53839.349563
Subtracting 2403 from 2440 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 15:
The number 801 fits into 370 0 times, leaving a remainder of 370.
Put 0 as the next digit of the answer. 
Result so far: 53839.349563
If we subtract 0 from 370, we get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Advancing to step 16:
801 can be fit into 3700 4 times, resulting in a remainder of 496.
Record the quotient 4 as the next digit in the result. 
Result so far: 53839.34956304
If we subtract 3204 from 3700, we get 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

In conclusion, the division gives 53839.34956304 with a balance of 4.96e-07.