We divide 43436397 by 809
We want to figure out the number of times 43436397 can be divided by 809.

Advancing to step 1:
The number 809 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
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 / 809

Let's proceed to step 2:
The number 809 fits into 43 0 times, leaving a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Take the next digit (4) from the dividend and append it to 43, then repeat: 434 / 809

Step 3:
434 divided by 809 is 0 with a remainder of 434.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 434 after subtracting 0 from 434.
Append the next digit (3) from the dividend to 434 and continue with: 4343 / 809

Let's proceed to step 4:
809 can be fit into 4343 5 times, resulting in a remainder of 298.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 4045 from 4343 leaves us with 298.
Append the next digit (6) from the dividend to 298 and continue with: 2986 / 809

Going ahead to step 5:
809 goes into 2986 3 times with a remainder of 559.
Use 3 as the next digit of our solution. 
Result so far: 53.0
The remainder is 559 after subtracting 2427 from 2986.
Grab the next digit (3) from the dividend, add it to 559, then carry on: 5593 / 809

Moving on to step 6:
809 can be fit into 5593 6 times, resulting in a remainder of 739.
The next digit of our result is 6. 
Result so far: 536.0
Subtracting 4854 from 5593 leaves us with 739.
Bring next digit (9) of the dividend behind the 739 and repeat the process: 7399 / 809

Going ahead to step 7:
The number 809 fits into 7399 9 times, leaving a remainder of 118.
Use 9 as the next digit of our solution. 
Result so far: 5369.0
Deduct 7281 from 7399 and we're left with 118.
Grab the next digit (7) from the dividend, add it to 118, then carry on: 1187 / 809

Moving on to step 8:
If we divide 1187 by 809, we get 1 and a remainder of 378.
Record the quotient 1 as the next digit in the result. 
Result so far: 53691.0
Subtracting 809 from 1187 leaves us with 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Going ahead to step 9:
3780 divided by 809 is 4 with a remainder of 544.
Write down 4 as next digit of the result. 
Result so far: 53691.4
Deduct 3236 from 3780 and we're left with 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

On to step 10:
When dividing 5440 by 809, we get 6 with a remainder of 586.
Record the quotient 6 as the next digit in the result. 
Result so far: 53691.46
If we subtract 4854 from 5440, we get 586.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5860, and continue the process.

Let's proceed to step 11:
If we divide 5860 by 809, we get 7 and a remainder of 197.
Put 7 as the next digit of the answer. 
Result so far: 53691.467
If we subtract 5663 from 5860, we get 197.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Advancing to step 12:
1970 divided by 809 is 2 with a remainder of 352.
The number 2 becomes the next digit in our result. 
Result so far: 53691.4672
If we take 1618 away from 1970, we end up with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

On to step 13:
When dividing 3520 by 809, we get 4 with a remainder of 284.
The number 4 becomes the next digit in our result. 
Result so far: 53691.46724
Subtracting 3236 from 3520 leaves us with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Going ahead to step 14:
The number 809 fits into 2840 3 times, leaving a remainder of 413.
The number 3 becomes the next digit in our result. 
Result so far: 53691.467243
If we take 2427 away from 2840, we end up with 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

Advancing to step 15:
809 can be fit into 4130 5 times, resulting in a remainder of 85.
Write down 5 as next digit of the result. 
Result so far: 53691.4672435
If we subtract 4045 from 4130, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Going ahead to step 16:
When dividing 850 by 809, we get 1 with a remainder of 41.
Use 1 as the next digit of our solution. 
Result so far: 53691.46724351
Deduct 809 from 850 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Our division results in 53691.46724351 with a remaining 4.1e-08.