We look at the division of 53145324 by 401 
We want to figure out the number of times 53145324 can be divided by 401.

On to step 1:
The number 401 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 401

On to step 2:
When dividing 53 by 401, we get 0 with a remainder of 53.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Grab the next digit (1) from the dividend, add it to 53, then carry on: 531 / 401

On to step 3:
401 can be fit into 531 1 times, resulting in a remainder of 130.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 401 from 531 and we're left with 130.
Take the next digit (4) from the dividend and append it to 130, then repeat: 1304 / 401

Moving on to step 4:
1304 divided by 401 is 3 with a remainder of 101.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
The remainder is 101 after subtracting 1203 from 1304.
Fetch the next digit (5) from the dividend, attach it to 101 and continue: 1015 / 401

Moving on to step 5:
If we divide 1015 by 401, we get 2 and a remainder of 213.
Write down 2 as next digit of the result. 
Result so far: 132.0
Subtracting 802 from 1015 leaves us with 213.
Include the next digit (3) from the dividend after 213, then repeat: 2133 / 401

Let's proceed to step 6:
2133 divided by 401 is 5 with a remainder of 128.
Write down 5 as next digit of the result. 
Result so far: 1325.0
The remainder is 128 after subtracting 2005 from 2133.
Bring next digit (2) of the dividend behind the 128 and repeat the process: 1282 / 401

On to step 7:
The number 401 fits into 1282 3 times, leaving a remainder of 79.
Write down 3 as next digit of the result. 
Result so far: 13253.0
Deduct 1203 from 1282 and we're left with 79.
Append the next digit (4) from the dividend to 79 and continue with: 794 / 401

Moving on to step 8:
When dividing 794 by 401, we get 1 with a remainder of 393.
Use 1 as the next digit of our solution. 
Result so far: 132531.0
The remainder is 393 after subtracting 401 from 794.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

Step 9:
When dividing 3930 by 401, we get 9 with a remainder of 321.
The number 9 becomes the next digit in our result. 
Result so far: 132531.9
If we subtract 3609 from 3930, we get 321.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

Going ahead to step 10:
3210 divided by 401 is 8 with a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 132531.98
Subtract 3208 from 3210 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 11:
401 goes into 20 0 times with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 132531.98
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 12:
The number 401 fits into 200 0 times, leaving a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 132531.98
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final result is 132531.98 with a remainder of 0.002.