We're dividing 393455 by 53 
We're looking to find how many times 53 goes into 393455.

Let's proceed to step 1:
When dividing 3 by 53, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 53

Going ahead to step 2:
39 divided by 53 is 0 with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Bring next digit (3) of the dividend behind the 39 and repeat the process: 393 / 53

Moving on to step 3:
53 goes into 393 7 times with a remainder of 22.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 371 from 393 to get 22.
Take the next digit (4) from the dividend and append it to 22, then repeat: 224 / 53

On to step 4:
If we divide 224 by 53, we get 4 and a remainder of 12.
The next digit of our result is 4. 
Result so far: 74.0
Deduct 212 from 224 and we're left with 12.
Fetch the next digit (5) from the dividend, attach it to 12 and continue: 125 / 53

Let's proceed to step 5:
The number 53 fits into 125 2 times, leaving a remainder of 19.
The number 2 becomes the next digit in our result. 
Result so far: 742.0
If we subtract 106 from 125, we get 19.
Grab the next digit (5) from the dividend, add it to 19, then carry on: 195 / 53

Let's proceed to step 6:
195 divided by 53 is 3 with a remainder of 36.
Write down 3 as next digit of the result. 
Result so far: 7423.0
If we subtract 159 from 195, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 7:
360 divided by 53 is 6 with a remainder of 42.
Put 6 as the next digit of the answer. 
Result so far: 7423.6
The remainder is 42 after subtracting 318 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 8:
The number 53 fits into 420 7 times, leaving a remainder of 49.
Record the quotient 7 as the next digit in the result. 
Result so far: 7423.67
If we take 371 away from 420, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 9:
When dividing 490 by 53, we get 9 with a remainder of 13.
The next digit of our result is 9. 
Result so far: 7423.679
Subtract 477 from 490 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 10:
When dividing 130 by 53, we get 2 with a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 7423.6792
Subtract 106 from 130 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 11:
53 goes into 240 4 times with a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 7423.67924
If we take 212 away from 240, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 12:
When dividing 280 by 53, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 7423.679245
Subtract 265 from 280 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 13:
When dividing 150 by 53, we get 2 with a remainder of 44.
Record the quotient 2 as the next digit in the result. 
Result so far: 7423.6792452
Deduct 106 from 150 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 14:
53 can be fit into 440 8 times, resulting in a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 7423.67924528
If we subtract 424 from 440, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 7423.67924528, with a leftover of 1.6e-08.