We're dividing 401441 by 66 
The aim is to understand the frequency of 66 in 401441.

Let's proceed to step 1:
The number 66 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 66

Let's proceed to step 2:
The number 66 fits into 40 0 times, leaving a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Bring next digit (1) of the dividend behind the 40 and repeat the process: 401 / 66

Step 3:
401 divided by 66 is 6 with a remainder of 5.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we take 396 away from 401, we end up with 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 66

Going ahead to step 4:
When dividing 54 by 66, we get 0 with a remainder of 54.
Put 0 as the next digit of the answer. 
Result so far: 60.0
The remainder is 54 after subtracting 0 from 54.
Append the next digit (4) from the dividend to 54 and continue with: 544 / 66

Going ahead to step 5:
When dividing 544 by 66, we get 8 with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 608.0
If we subtract 528 from 544, we get 16.
Take the next digit (1) from the dividend and append it to 16, then repeat: 161 / 66

Going ahead to step 6:
66 can be fit into 161 2 times, resulting in a remainder of 29.
Use 2 as the next digit of our solution. 
Result so far: 6082.0
Deduct 132 from 161 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 7:
The number 66 fits into 290 4 times, leaving a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 6082.4
Subtracting 264 from 290 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 8:
66 can be fit into 260 3 times, resulting in a remainder of 62.
The number 3 becomes the next digit in our result. 
Result so far: 6082.43
Subtracting 198 from 260 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 9:
66 goes into 620 9 times with a remainder of 26.
The number 9 becomes the next digit in our result. 
Result so far: 6082.439
Subtract 594 from 620 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 10:
66 can be fit into 260 3 times, resulting in a remainder of 62.
Use 3 as the next digit of our solution. 
Result so far: 6082.4393
Deduct 198 from 260 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 11:
If we divide 620 by 66, we get 9 and a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 6082.43939
If we subtract 594 from 620, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 12:
When dividing 260 by 66, we get 3 with a remainder of 62.
The number 3 becomes the next digit in our result. 
Result so far: 6082.439393
Subtracting 198 from 260 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 13:
The number 66 fits into 620 9 times, leaving a remainder of 26.
The number 9 becomes the next digit in our result. 
Result so far: 6082.4393939
If we subtract 594 from 620, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 14:
When dividing 260 by 66, we get 3 with a remainder of 62.
The number 3 becomes the next digit in our result. 
Result so far: 6082.43939393
Deduct 198 from 260 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

In conclusion, the division gives 6082.43939393 with a balance of 6.2e-08.