5515390 divided by 401 
We want to divide 5515390 by 401.

On to step 1:
5 divided by 401 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 401

Moving on to step 2:
401 goes into 55 0 times with a remainder of 55.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 55, we get 55.
Include the next digit (1) from the dividend after 55, then repeat: 551 / 401

Moving on to step 3:
The number 401 fits into 551 1 times, leaving a remainder of 150.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 401 from 551 leaves us with 150.
Append the next digit (5) from the dividend to 150 and continue with: 1505 / 401

Going ahead to step 4:
401 can be fit into 1505 3 times, resulting in a remainder of 302.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we take 1203 away from 1505, we end up with 302.
Append the next digit (3) from the dividend to 302 and continue with: 3023 / 401

On to step 5:
3023 divided by 401 is 7 with a remainder of 216.
Record the quotient 7 as the next digit in the result. 
Result so far: 137.0
Subtracting 2807 from 3023 leaves us with 216.
Grab the next digit (9) from the dividend, add it to 216, then carry on: 2169 / 401

Going ahead to step 6:
If we divide 2169 by 401, we get 5 and a remainder of 164.
Record the quotient 5 as the next digit in the result. 
Result so far: 1375.0
Subtracting 2005 from 2169 leaves us with 164.
Bring next digit (0) of the dividend behind the 164 and repeat the process: 1640 / 401

Going ahead to step 7:
If we divide 1640 by 401, we get 4 and a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 13754.0
If we subtract 1604 from 1640, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 8:
If we divide 360 by 401, we get 0 and a remainder of 360.
Put 0 as the next digit of the answer. 
Result so far: 13754.0
If we subtract 0 from 360, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 9:
When dividing 3600 by 401, we get 8 with a remainder of 392.
Put 8 as the next digit of the answer. 
Result so far: 13754.08
If we subtract 3208 from 3600, we get 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

On to step 10:
When dividing 3920 by 401, we get 9 with a remainder of 311.
The next digit of our result is 9. 
Result so far: 13754.089
The remainder is 311 after subtracting 3609 from 3920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

On to step 11:
3110 divided by 401 is 7 with a remainder of 303.
Write down 7 as next digit of the result. 
Result so far: 13754.0897
The remainder is 303 after subtracting 2807 from 3110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

Moving on to step 12:
If we divide 3030 by 401, we get 7 and a remainder of 223.
Write down 7 as next digit of the result. 
Result so far: 13754.08977
If we take 2807 away from 3030, we end up with 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

After the division, we end up with 13754.08977 and a remainder of 0.000223.