We look at the division of 53985757 by 427 
We're looking to find how many times 427 goes into 53985757.

Advancing to step 1:
When dividing 5 by 427, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 427

Going ahead to step 2:
When dividing 53 by 427, we get 0 with a remainder of 53.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 53 leaves us with 53.
Grab the next digit (9) from the dividend, add it to 53, then carry on: 539 / 427

On to step 3:
539 divided by 427 is 1 with a remainder of 112.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 427 from 539 to get 112.
Fetch the next digit (8) from the dividend, attach it to 112 and continue: 1128 / 427

Step 4:
427 goes into 1128 2 times with a remainder of 274.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 854 from 1128 leaves us with 274.
Include the next digit (5) from the dividend after 274, then repeat: 2745 / 427

Advancing to step 5:
2745 divided by 427 is 6 with a remainder of 183.
The next digit of our result is 6. 
Result so far: 126.0
The remainder is 183 after subtracting 2562 from 2745.
Grab the next digit (7) from the dividend, add it to 183, then carry on: 1837 / 427

Let's proceed to step 6:
1837 divided by 427 is 4 with a remainder of 129.
Put 4 as the next digit of the answer. 
Result so far: 1264.0
The remainder is 129 after subtracting 1708 from 1837.
Bring next digit (5) of the dividend behind the 129 and repeat the process: 1295 / 427

Step 7:
When dividing 1295 by 427, we get 3 with a remainder of 14.
The number 3 becomes the next digit in our result. 
Result so far: 12643.0
Deduct 1281 from 1295 and we're left with 14.
Include the next digit (7) from the dividend after 14, then repeat: 147 / 427

Moving on to step 8:
427 can be fit into 147 0 times, resulting in a remainder of 147.
Record the quotient 0 as the next digit in the result. 
Result so far: 126430.0
Subtracting 0 from 147 leaves us with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Moving on to step 9:
1470 divided by 427 is 3 with a remainder of 189.
Write down 3 as next digit of the result. 
Result so far: 126430.3
Subtract 1281 from 1470 to get 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

Moving on to step 10:
427 goes into 1890 4 times with a remainder of 182.
Use 4 as the next digit of our solution. 
Result so far: 126430.34
If we take 1708 away from 1890, we end up with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Moving on to step 11:
1820 divided by 427 is 4 with a remainder of 112.
Put 4 as the next digit of the answer. 
Result so far: 126430.344
The remainder is 112 after subtracting 1708 from 1820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

The final outcome is 126430.344, with a leftover of 0.0112.