We divide 55404211 by 401
Our goal is to divide 55404211 by 401.

Let's proceed to step 1:
When dividing 5 by 401, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 401

Moving on to step 2:
The number 401 fits into 55 0 times, leaving a remainder of 55.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Append the next digit (4) from the dividend to 55 and continue with: 554 / 401

Advancing to step 3:
401 can be fit into 554 1 times, resulting in a remainder of 153.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 153 after subtracting 401 from 554.
Grab the next digit (0) from the dividend, add it to 153, then carry on: 1530 / 401

On to step 4:
If we divide 1530 by 401, we get 3 and a remainder of 327.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Subtract 1203 from 1530 to get 327.
Append the next digit (4) from the dividend to 327 and continue with: 3274 / 401

Let's proceed to step 5:
3274 divided by 401 is 8 with a remainder of 66.
The next digit of our result is 8. 
Result so far: 138.0
Deduct 3208 from 3274 and we're left with 66.
Fetch the next digit (2) from the dividend, attach it to 66 and continue: 662 / 401

Moving on to step 6:
When dividing 662 by 401, we get 1 with a remainder of 261.
Write down 1 as next digit of the result. 
Result so far: 1381.0
Deduct 401 from 662 and we're left with 261.
Grab the next digit (1) from the dividend, add it to 261, then carry on: 2611 / 401

Moving on to step 7:
2611 divided by 401 is 6 with a remainder of 205.
The next digit of our result is 6. 
Result so far: 13816.0
If we subtract 2406 from 2611, we get 205.
Append the next digit (1) from the dividend to 205 and continue with: 2051 / 401

Going ahead to step 8:
The number 401 fits into 2051 5 times, leaving a remainder of 46.
Put 5 as the next digit of the answer. 
Result so far: 138165.0
Deduct 2005 from 2051 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 9:
401 goes into 460 1 times with a remainder of 59.
Write down 1 as next digit of the result. 
Result so far: 138165.1
Subtracting 401 from 460 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 10:
401 can be fit into 590 1 times, resulting in a remainder of 189.
The next digit of our result is 1. 
Result so far: 138165.11
Subtracting 401 from 590 leaves us with 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

The final outcome is 138165.11, with a leftover of 0.189.