43959128 divided by 819 
We want to figure out the number of times 43959128 can be divided by 819.

Going ahead to step 1:
819 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 819

On to step 2:
819 can be fit into 43 0 times, resulting in a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Grab the next digit (9) from the dividend, add it to 43, then carry on: 439 / 819

Let's proceed to step 3:
The number 819 fits into 439 0 times, leaving a remainder of 439.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 439 to get 439.
Include the next digit (5) from the dividend after 439, then repeat: 4395 / 819

Step 4:
819 goes into 4395 5 times with a remainder of 300.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 4095 from 4395 and we're left with 300.
Grab the next digit (9) from the dividend, add it to 300, then carry on: 3009 / 819

Moving on to step 5:
When dividing 3009 by 819, we get 3 with a remainder of 552.
The next digit of our result is 3. 
Result so far: 53.0
If we take 2457 away from 3009, we end up with 552.
Take the next digit (1) from the dividend and append it to 552, then repeat: 5521 / 819

Let's proceed to step 6:
819 can be fit into 5521 6 times, resulting in a remainder of 607.
The next digit of our result is 6. 
Result so far: 536.0
Subtracting 4914 from 5521 leaves us with 607.
Append the next digit (2) from the dividend to 607 and continue with: 6072 / 819

Step 7:
6072 divided by 819 is 7 with a remainder of 339.
The number 7 becomes the next digit in our result. 
Result so far: 5367.0
Subtracting 5733 from 6072 leaves us with 339.
Include the next digit (8) from the dividend after 339, then repeat: 3398 / 819

Advancing to step 8:
When dividing 3398 by 819, we get 4 with a remainder of 122.
Use 4 as the next digit of our solution. 
Result so far: 53674.0
If we take 3276 away from 3398, we end up with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Step 9:
The number 819 fits into 1220 1 times, leaving a remainder of 401.
The number 1 becomes the next digit in our result. 
Result so far: 53674.1
The remainder is 401 after subtracting 819 from 1220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

On to step 10:
When dividing 4010 by 819, we get 4 with a remainder of 734.
Use 4 as the next digit of our solution. 
Result so far: 53674.14
If we take 3276 away from 4010, we end up with 734.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7340, and continue the process.

Advancing to step 11:
7340 divided by 819 is 8 with a remainder of 788.
Write down 8 as next digit of the result. 
Result so far: 53674.148
Subtract 6552 from 7340 to get 788.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7880, and continue the process.

Let's proceed to step 12:
7880 divided by 819 is 9 with a remainder of 509.
Put 9 as the next digit of the answer. 
Result so far: 53674.1489
If we take 7371 away from 7880, we end up with 509.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5090, and continue the process.

Step 13:
819 can be fit into 5090 6 times, resulting in a remainder of 176.
Record the quotient 6 as the next digit in the result. 
Result so far: 53674.14896
Subtract 4914 from 5090 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Advancing to step 14:
1760 divided by 819 is 2 with a remainder of 122.
Record the quotient 2 as the next digit in the result. 
Result so far: 53674.148962
If we subtract 1638 from 1760, we get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Advancing to step 15:
819 goes into 1220 1 times with a remainder of 401.
Record the quotient 1 as the next digit in the result. 
Result so far: 53674.1489621
If we take 819 away from 1220, we end up with 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Going ahead to step 16:
819 can be fit into 4010 4 times, resulting in a remainder of 734.
The next digit of our result is 4. 
Result so far: 53674.14896214
If we subtract 3276 from 4010, we get 734.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7340, and continue the process.

The final result is 53674.14896214 with a remainder of 7.34e-07.