We divide 28519030 by 401
The aim is to understand the frequency of 401 in 28519030.

Advancing to step 1:
The number 401 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 401

Moving on to step 2:
28 divided by 401 is 0 with a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Bring next digit (5) of the dividend behind the 28 and repeat the process: 285 / 401

Advancing to step 3:
401 goes into 285 0 times with a remainder of 285.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 285 after subtracting 0 from 285.
Append the next digit (1) from the dividend to 285 and continue with: 2851 / 401

Step 4:
If we divide 2851 by 401, we get 7 and a remainder of 44.
The next digit of our result is 7. 
Result so far: 7.0
The remainder is 44 after subtracting 2807 from 2851.
Fetch the next digit (9) from the dividend, attach it to 44 and continue: 449 / 401

Going ahead to step 5:
401 goes into 449 1 times with a remainder of 48.
Write down 1 as next digit of the result. 
Result so far: 71.0
Deduct 401 from 449 and we're left with 48.
Append the next digit (0) from the dividend to 48 and continue with: 480 / 401

Moving on to step 6:
480 divided by 401 is 1 with a remainder of 79.
Record the quotient 1 as the next digit in the result. 
Result so far: 711.0
Subtracting 401 from 480 leaves us with 79.
Bring next digit (3) of the dividend behind the 79 and repeat the process: 793 / 401

On to step 7:
401 can be fit into 793 1 times, resulting in a remainder of 392.
Record the quotient 1 as the next digit in the result. 
Result so far: 7111.0
If we subtract 401 from 793, we get 392.
Bring next digit (0) of the dividend behind the 392 and repeat the process: 3920 / 401

Advancing to step 8:
401 goes into 3920 9 times with a remainder of 311.
Write down 9 as next digit of the result. 
Result so far: 71119.0
Subtract 3609 from 3920 to get 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

Advancing to step 9:
If we divide 3110 by 401, we get 7 and a remainder of 303.
Record the quotient 7 as the next digit in the result. 
Result so far: 71119.7
Subtract 2807 from 3110 to get 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

Step 10:
When dividing 3030 by 401, we get 7 with a remainder of 223.
Use 7 as the next digit of our solution. 
Result so far: 71119.77
Deduct 2807 from 3030 and we're left 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.

Our division results in 71119.77 with a remaining 0.223.