We look at the division of 51948209 by 805 
We're looking to find how many times 805 goes into 51948209.

Going ahead to step 1:
If we divide 5 by 805, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 805

Going ahead to step 2:
51 divided by 805 is 0 with a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Include the next digit (9) from the dividend after 51, then repeat: 519 / 805

Advancing to step 3:
519 divided by 805 is 0 with a remainder of 519.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 519, we get 519.
Bring next digit (4) of the dividend behind the 519 and repeat the process: 5194 / 805

Let's proceed to step 4:
805 goes into 5194 6 times with a remainder of 364.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtract 4830 from 5194 to get 364.
Fetch the next digit (8) from the dividend, attach it to 364 and continue: 3648 / 805

Going ahead to step 5:
3648 divided by 805 is 4 with a remainder of 428.
The number 4 becomes the next digit in our result. 
Result so far: 64.0
Subtracting 3220 from 3648 leaves us with 428.
Grab the next digit (2) from the dividend, add it to 428, then carry on: 4282 / 805

Let's proceed to step 6:
4282 divided by 805 is 5 with a remainder of 257.
Use 5 as the next digit of our solution. 
Result so far: 645.0
If we subtract 4025 from 4282, we get 257.
Grab the next digit (0) from the dividend, add it to 257, then carry on: 2570 / 805

Let's proceed to step 7:
805 goes into 2570 3 times with a remainder of 155.
Record the quotient 3 as the next digit in the result. 
Result so far: 6453.0
If we take 2415 away from 2570, we end up with 155.
Append the next digit (9) from the dividend to 155 and continue with: 1559 / 805

Advancing to step 8:
When dividing 1559 by 805, we get 1 with a remainder of 754.
Write down 1 as next digit of the result. 
Result so far: 64531.0
Subtract 805 from 1559 to get 754.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7540, and continue the process.

On to step 9:
When dividing 7540 by 805, we get 9 with a remainder of 295.
The number 9 becomes the next digit in our result. 
Result so far: 64531.9
Subtracting 7245 from 7540 leaves us with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Let's proceed to step 10:
When dividing 2950 by 805, we get 3 with a remainder of 535.
Put 3 as the next digit of the answer. 
Result so far: 64531.93
If we take 2415 away from 2950, we end up with 535.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5350, and continue the process.

Step 11:
The number 805 fits into 5350 6 times, leaving a remainder of 520.
Use 6 as the next digit of our solution. 
Result so far: 64531.936
If we subtract 4830 from 5350, we get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

On to step 12:
5200 divided by 805 is 6 with a remainder of 370.
Write down 6 as next digit of the result. 
Result so far: 64531.9366
If we take 4830 away from 5200, we end up with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

The final result is 64531.9366 with a remainder of 0.0037.