We look at the division of 22639971 by 401 
The aim is to understand the frequency of 401 in 22639971.

Let's proceed to step 1:
2 divided by 401 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 401

Step 2:
22 divided by 401 is 0 with a remainder of 22.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 22, we end up with 22.
Append the next digit (6) from the dividend to 22 and continue with: 226 / 401

On to step 3:
401 can be fit into 226 0 times, resulting in a remainder of 226.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 226, we end up with 226.
Include the next digit (3) from the dividend after 226, then repeat: 2263 / 401

Moving on to step 4:
The number 401 fits into 2263 5 times, leaving a remainder of 258.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 2005 from 2263, we get 258.
Include the next digit (9) from the dividend after 258, then repeat: 2589 / 401

On to step 5:
401 can be fit into 2589 6 times, resulting in a remainder of 183.
Write down 6 as next digit of the result. 
Result so far: 56.0
Subtract 2406 from 2589 to get 183.
Append the next digit (9) from the dividend to 183 and continue with: 1839 / 401

Going ahead to step 6:
If we divide 1839 by 401, we get 4 and a remainder of 235.
The number 4 becomes the next digit in our result. 
Result so far: 564.0
Subtracting 1604 from 1839 leaves us with 235.
Grab the next digit (7) from the dividend, add it to 235, then carry on: 2357 / 401

On to step 7:
When dividing 2357 by 401, we get 5 with a remainder of 352.
The number 5 becomes the next digit in our result. 
Result so far: 5645.0
Subtract 2005 from 2357 to get 352.
Grab the next digit (1) from the dividend, add it to 352, then carry on: 3521 / 401

Moving on to step 8:
401 can be fit into 3521 8 times, resulting in a remainder of 313.
Record the quotient 8 as the next digit in the result. 
Result so far: 56458.0
Subtract 3208 from 3521 to get 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Let's proceed to step 9:
401 goes into 3130 7 times with a remainder of 323.
The number 7 becomes the next digit in our result. 
Result so far: 56458.7
The remainder is 323 after subtracting 2807 from 3130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

Let's proceed to step 10:
401 can be fit into 3230 8 times, resulting in a remainder of 22.
The next digit of our result is 8. 
Result so far: 56458.78
The remainder is 22 after subtracting 3208 from 3230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 11:
401 can be fit into 220 0 times, resulting in a remainder of 220.
The number 0 becomes the next digit in our result. 
Result so far: 56458.78
Subtract 0 from 220 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 12:
401 can be fit into 2200 5 times, resulting in a remainder of 195.
Record the quotient 5 as the next digit in the result. 
Result so far: 56458.7805
If we subtract 2005 from 2200, we get 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Going ahead to step 13:
If we divide 1950 by 401, we get 4 and a remainder of 346.
The number 4 becomes the next digit in our result. 
Result so far: 56458.78054
If we subtract 1604 from 1950, we get 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Advancing to step 14:
If we divide 3460 by 401, we get 8 and a remainder of 252.
Use 8 as the next digit of our solution. 
Result so far: 56458.780548
Subtract 3208 from 3460 to get 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Going ahead to step 15:
When dividing 2520 by 401, we get 6 with a remainder of 114.
Record the quotient 6 as the next digit in the result. 
Result so far: 56458.7805486
Subtracting 2406 from 2520 leaves us with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

On to step 16:
401 goes into 1140 2 times with a remainder of 338.
The next digit of our result is 2. 
Result so far: 56458.78054862
The remainder is 338 after subtracting 802 from 1140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

The final outcome is 56458.78054862, with a leftover of 3.38e-07.