Let's divide 78538809 by 809
We're looking to find how many times 809 goes into 78538809.

Moving on to step 1:
809 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 809

Let's proceed to step 2:
The number 809 fits into 78 0 times, leaving a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Take the next digit (5) from the dividend and append it to 78, then repeat: 785 / 809

On to step 3:
When dividing 785 by 809, we get 0 with a remainder of 785.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 785 and we're left with 785.
Append the next digit (3) from the dividend to 785 and continue with: 7853 / 809

Let's proceed to step 4:
7853 divided by 809 is 9 with a remainder of 572.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
The remainder is 572 after subtracting 7281 from 7853.
Take the next digit (8) from the dividend and append it to 572, then repeat: 5728 / 809

Moving on to step 5:
5728 divided by 809 is 7 with a remainder of 65.
The number 7 becomes the next digit in our result. 
Result so far: 97.0
If we take 5663 away from 5728, we end up with 65.
Append the next digit (8) from the dividend to 65 and continue with: 658 / 809

Let's proceed to step 6:
809 goes into 658 0 times with a remainder of 658.
The number 0 becomes the next digit in our result. 
Result so far: 970.0
If we subtract 0 from 658, we get 658.
Append the next digit (0) from the dividend to 658 and continue with: 6580 / 809

Let's proceed to step 7:
6580 divided by 809 is 8 with a remainder of 108.
Record the quotient 8 as the next digit in the result. 
Result so far: 9708.0
If we subtract 6472 from 6580, we get 108.
Include the next digit (9) from the dividend after 108, then repeat: 1089 / 809

Advancing to step 8:
If we divide 1089 by 809, we get 1 and a remainder of 280.
Put 1 as the next digit of the answer. 
Result so far: 97081.0
The remainder is 280 after subtracting 809 from 1089.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Let's proceed to step 9:
2800 divided by 809 is 3 with a remainder of 373.
The next digit of our result is 3. 
Result so far: 97081.3
The remainder is 373 after subtracting 2427 from 2800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

Step 10:
809 can be fit into 3730 4 times, resulting in a remainder of 494.
The next digit of our result is 4. 
Result so far: 97081.34
Deduct 3236 from 3730 and we're left with 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

Let's proceed to step 11:
When dividing 4940 by 809, we get 6 with a remainder of 86.
Record the quotient 6 as the next digit in the result. 
Result so far: 97081.346
The remainder is 86 after subtracting 4854 from 4940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 12:
When dividing 860 by 809, we get 1 with a remainder of 51.
Write down 1 as next digit of the result. 
Result so far: 97081.3461
Subtracting 809 from 860 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 13:
When dividing 510 by 809, we get 0 with a remainder of 510.
Write down 0 as next digit of the result. 
Result so far: 97081.3461
Subtracting 0 from 510 leaves us with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Advancing to step 14:
809 can be fit into 5100 6 times, resulting in a remainder of 246.
Record the quotient 6 as the next digit in the result. 
Result so far: 97081.346106
Subtracting 4854 from 5100 leaves us with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Step 15:
The number 809 fits into 2460 3 times, leaving a remainder of 33.
The next digit of our result is 3. 
Result so far: 97081.3461063
Deduct 2427 from 2460 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 16:
The number 809 fits into 330 0 times, leaving a remainder of 330.
Write down 0 as next digit of the result. 
Result so far: 97081.3461063
Deduct 0 from 330 and we're left with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

The final outcome is 97081.3461063, with a leftover of 3.3e-07.