Let's divide 39188701 by 401
The aim is to understand the frequency of 401 in 39188701.

Moving on to step 1:
401 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 401

Going ahead to step 2:
39 divided by 401 is 0 with a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Grab the next digit (1) from the dividend, add it to 39, then carry on: 391 / 401

Advancing to step 3:
The number 401 fits into 391 0 times, leaving a remainder of 391.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 391 and we're left with 391.
Take the next digit (8) from the dividend and append it to 391, then repeat: 3918 / 401

Going ahead to step 4:
401 can be fit into 3918 9 times, resulting in a remainder of 309.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we take 3609 away from 3918, we end up with 309.
Include the next digit (8) from the dividend after 309, then repeat: 3098 / 401

Moving on to step 5:
The number 401 fits into 3098 7 times, leaving a remainder of 291.
Record the quotient 7 as the next digit in the result. 
Result so far: 97.0
If we take 2807 away from 3098, we end up with 291.
Grab the next digit (7) from the dividend, add it to 291, then carry on: 2917 / 401

Step 6:
401 goes into 2917 7 times with a remainder of 110.
The next digit of our result is 7. 
Result so far: 977.0
If we subtract 2807 from 2917, we get 110.
Append the next digit (0) from the dividend to 110 and continue with: 1100 / 401

Going ahead to step 7:
When dividing 1100 by 401, we get 2 with a remainder of 298.
Put 2 as the next digit of the answer. 
Result so far: 9772.0
If we take 802 away from 1100, we end up with 298.
Take the next digit (1) from the dividend and append it to 298, then repeat: 2981 / 401

Going ahead to step 8:
401 can be fit into 2981 7 times, resulting in a remainder of 174.
Put 7 as the next digit of the answer. 
Result so far: 97727.0
If we subtract 2807 from 2981, we get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Let's proceed to step 9:
1740 divided by 401 is 4 with a remainder of 136.
Write down 4 as next digit of the result. 
Result so far: 97727.4
If we take 1604 away from 1740, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Going ahead to step 10:
When dividing 1360 by 401, we get 3 with a remainder of 157.
The number 3 becomes the next digit in our result. 
Result so far: 97727.43
If we subtract 1203 from 1360, we get 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Going ahead to step 11:
1570 divided by 401 is 3 with a remainder of 367.
The next digit of our result is 3. 
Result so far: 97727.433
If we take 1203 away from 1570, we end up with 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

The final result is 97727.433 with a remainder of 0.0367.