53385486 divided by 401 
Our goal is to divide 53385486 by 401.

Going ahead to step 1:
When dividing 5 by 401, we get 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 401

Going ahead to step 2:
The number 401 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
If we subtract 0 from 53, we get 53.
Bring next digit (3) of the dividend behind the 53 and repeat the process: 533 / 401

Moving on to step 3:
401 can be fit into 533 1 times, resulting in a remainder of 132.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 401 from 533 leaves us with 132.
Grab the next digit (8) from the dividend, add it to 132, then carry on: 1328 / 401

Advancing to step 4:
If we divide 1328 by 401, we get 3 and a remainder of 125.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we subtract 1203 from 1328, we get 125.
Fetch the next digit (5) from the dividend, attach it to 125 and continue: 1255 / 401

Moving on to step 5:
401 can be fit into 1255 3 times, resulting in a remainder of 52.
The number 3 becomes the next digit in our result. 
Result so far: 133.0
Subtracting 1203 from 1255 leaves us with 52.
Fetch the next digit (4) from the dividend, attach it to 52 and continue: 524 / 401

Advancing to step 6:
401 goes into 524 1 times with a remainder of 123.
Use 1 as the next digit of our solution. 
Result so far: 1331.0
The remainder is 123 after subtracting 401 from 524.
Take the next digit (8) from the dividend and append it to 123, then repeat: 1238 / 401

Let's proceed to step 7:
The number 401 fits into 1238 3 times, leaving a remainder of 35.
The number 3 becomes the next digit in our result. 
Result so far: 13313.0
Subtracting 1203 from 1238 leaves us with 35.
Take the next digit (6) from the dividend and append it to 35, then repeat: 356 / 401

Moving on to step 8:
401 goes into 356 0 times with a remainder of 356.
Write down 0 as next digit of the result. 
Result so far: 133130.0
Deduct 0 from 356 and we're left with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Advancing to step 9:
The number 401 fits into 3560 8 times, leaving a remainder of 352.
Use 8 as the next digit of our solution. 
Result so far: 133130.8
If we take 3208 away from 3560, we end up with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Moving on to step 10:
If we divide 3520 by 401, we get 8 and a remainder of 312.
Use 8 as the next digit of our solution. 
Result so far: 133130.88
The remainder is 312 after subtracting 3208 from 3520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Our division results in 133130.88 with a remaining 0.312.