We look at the division of 54311772 by 809 
We want to figure out the number of times 54311772 can be divided by 809.

Going ahead to step 1:
If we divide 5 by 809, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 809

Going ahead to step 2:
When dividing 54 by 809, we get 0 with a remainder of 54.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 54 after subtracting 0 from 54.
Take the next digit (3) from the dividend and append it to 54, then repeat: 543 / 809

Advancing to step 3:
809 can be fit into 543 0 times, resulting in a remainder of 543.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 543 to get 543.
Include the next digit (1) from the dividend after 543, then repeat: 5431 / 809

On to step 4:
809 can be fit into 5431 6 times, resulting in a remainder of 577.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 4854 from 5431 and we're left with 577.
Bring next digit (1) of the dividend behind the 577 and repeat the process: 5771 / 809

Going ahead to step 5:
If we divide 5771 by 809, we get 7 and a remainder of 108.
Record the quotient 7 as the next digit in the result. 
Result so far: 67.0
The remainder is 108 after subtracting 5663 from 5771.
Grab the next digit (7) from the dividend, add it to 108, then carry on: 1087 / 809

Advancing to step 6:
The number 809 fits into 1087 1 times, leaving a remainder of 278.
The number 1 becomes the next digit in our result. 
Result so far: 671.0
If we take 809 away from 1087, we end up with 278.
Take the next digit (7) from the dividend and append it to 278, then repeat: 2787 / 809

Advancing to step 7:
If we divide 2787 by 809, we get 3 and a remainder of 360.
Write down 3 as next digit of the result. 
Result so far: 6713.0
If we subtract 2427 from 2787, we get 360.
Take the next digit (2) from the dividend and append it to 360, then repeat: 3602 / 809

On to step 8:
809 goes into 3602 4 times with a remainder of 366.
Use 4 as the next digit of our solution. 
Result so far: 67134.0
The remainder is 366 after subtracting 3236 from 3602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Step 9:
809 goes into 3660 4 times with a remainder of 424.
Put 4 as the next digit of the answer. 
Result so far: 67134.4
If we subtract 3236 from 3660, we get 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Moving on to step 10:
809 goes into 4240 5 times with a remainder of 195.
Put 5 as the next digit of the answer. 
Result so far: 67134.45
The remainder is 195 after subtracting 4045 from 4240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Going ahead to step 11:
The number 809 fits into 1950 2 times, leaving a remainder of 332.
The next digit of our result is 2. 
Result so far: 67134.452
Subtracting 1618 from 1950 leaves us with 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

On to step 12:
809 can be fit into 3320 4 times, resulting in a remainder of 84.
Write down 4 as next digit of the result. 
Result so far: 67134.4524
If we take 3236 away from 3320, we end up with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 13:
840 divided by 809 is 1 with a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 67134.45241
Subtracting 809 from 840 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 14:
If we divide 310 by 809, we get 0 and a remainder of 310.
Use 0 as the next digit of our solution. 
Result so far: 67134.45241
If we subtract 0 from 310, we get 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Let's proceed to step 15:
If we divide 3100 by 809, we get 3 and a remainder of 673.
Put 3 as the next digit of the answer. 
Result so far: 67134.4524103
If we subtract 2427 from 3100, we get 673.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6730, and continue the process.

On to step 16:
The number 809 fits into 6730 8 times, leaving a remainder of 258.
The next digit of our result is 8. 
Result so far: 67134.45241038
If we take 6472 away from 6730, we end up with 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

The quotient of the division is 67134.45241038, and the remainder is 2.58e-07.