53919305 divided by 775 
We want to figure out the number of times 53919305 can be divided by 775.

Advancing to step 1:
When dividing 5 by 775, we get 0 with 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 (3) from the dividend after 5, then repeat: 53 / 775

Going ahead to step 2:
The number 775 fits into 53 0 times, leaving a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 53 after subtracting 0 from 53.
Append the next digit (9) from the dividend to 53 and continue with: 539 / 775

Going ahead to step 3:
If we divide 539 by 775, we get 0 and a remainder of 539.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 539 leaves us with 539.
Bring next digit (1) of the dividend behind the 539 and repeat the process: 5391 / 775

Going ahead to step 4:
If we divide 5391 by 775, we get 6 and a remainder of 741.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 741 after subtracting 4650 from 5391.
Append the next digit (9) from the dividend to 741 and continue with: 7419 / 775

On to step 5:
When dividing 7419 by 775, we get 9 with a remainder of 444.
Use 9 as the next digit of our solution. 
Result so far: 69.0
If we take 6975 away from 7419, we end up with 444.
Grab the next digit (3) from the dividend, add it to 444, then carry on: 4443 / 775

Step 6:
775 can be fit into 4443 5 times, resulting in a remainder of 568.
Put 5 as the next digit of the answer. 
Result so far: 695.0
Deduct 3875 from 4443 and we're left with 568.
Fetch the next digit (0) from the dividend, attach it to 568 and continue: 5680 / 775

Moving on to step 7:
775 can be fit into 5680 7 times, resulting in a remainder of 255.
Record the quotient 7 as the next digit in the result. 
Result so far: 6957.0
Subtract 5425 from 5680 to get 255.
Include the next digit (5) from the dividend after 255, then repeat: 2555 / 775

Going ahead to step 8:
775 can be fit into 2555 3 times, resulting in a remainder of 230.
Write down 3 as next digit of the result. 
Result so far: 69573.0
If we subtract 2325 from 2555, we get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Moving on to step 9:
775 can be fit into 2300 2 times, resulting in a remainder of 750.
Use 2 as the next digit of our solution. 
Result so far: 69573.2
If we take 1550 away from 2300, we end up with 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Moving on to step 10:
775 goes into 7500 9 times with a remainder of 525.
Put 9 as the next digit of the answer. 
Result so far: 69573.29
If we subtract 6975 from 7500, we get 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Moving on to step 11:
If we divide 5250 by 775, we get 6 and a remainder of 600.
The number 6 becomes the next digit in our result. 
Result so far: 69573.296
If we subtract 4650 from 5250, we get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

On to step 12:
6000 divided by 775 is 7 with a remainder of 575.
Use 7 as the next digit of our solution. 
Result so far: 69573.2967
Deduct 5425 from 6000 and we're left with 575.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

Step 13:
If we divide 5750 by 775, we get 7 and a remainder of 325.
The next digit of our result is 7. 
Result so far: 69573.29677
If we take 5425 away from 5750, we end up with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

The final outcome is 69573.29677, with a leftover of 0.000325.