We look at the division of 53931217 by 168 
Our goal is to divide 53931217 by 168.

Moving on to step 1:
The number 168 fits into 5 0 times, leaving 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.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 168

Step 2:
168 can be fit into 53 0 times, resulting in a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Append the next digit (9) from the dividend to 53 and continue with: 539 / 168

On to step 3:
168 goes into 539 3 times with a remainder of 35.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 35 after subtracting 504 from 539.
Append the next digit (3) from the dividend to 35 and continue with: 353 / 168

On to step 4:
The number 168 fits into 353 2 times, leaving a remainder of 17.
Use 2 as the next digit of our solution. 
Result so far: 32.0
The remainder is 17 after subtracting 336 from 353.
Include the next digit (1) from the dividend after 17, then repeat: 171 / 168

Step 5:
171 divided by 168 is 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 321.0
Deduct 168 from 171 and we're left with 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 168

Advancing to step 6:
168 goes into 32 0 times with a remainder of 32.
The number 0 becomes the next digit in our result. 
Result so far: 3210.0
If we take 0 away from 32, we end up with 32.
Grab the next digit (1) from the dividend, add it to 32, then carry on: 321 / 168

Step 7:
168 goes into 321 1 times with a remainder of 153.
The next digit of our result is 1. 
Result so far: 32101.0
If we subtract 168 from 321, we get 153.
Take the next digit (7) from the dividend and append it to 153, then repeat: 1537 / 168

On to step 8:
168 goes into 1537 9 times with a remainder of 25.
Write down 9 as next digit of the result. 
Result so far: 321019.0
Deduct 1512 from 1537 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 9:
The number 168 fits into 250 1 times, leaving a remainder of 82.
Write down 1 as next digit of the result. 
Result so far: 321019.1
If we take 168 away from 250, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Let's proceed to step 10:
When dividing 820 by 168, we get 4 with a remainder of 148.
Write down 4 as next digit of the result. 
Result so far: 321019.14
Subtracting 672 from 820 leaves us with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Going ahead to step 11:
When dividing 1480 by 168, we get 8 with a remainder of 136.
The number 8 becomes the next digit in our result. 
Result so far: 321019.148
If we subtract 1344 from 1480, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 12:
168 can be fit into 1360 8 times, resulting in a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 321019.1488
Deduct 1344 from 1360 and we're left with 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 result is 321019.1488 with a remainder of 0.00016.