11065661 ÷ 639 
The aim is to understand the frequency of 639 in 11065661.

Going ahead to step 1:
1 divided by 639 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 639

Step 2:
When dividing 11 by 639, we get 0 with a remainder of 11.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 11 and we're left with 11.
Fetch the next digit (0) from the dividend, attach it to 11 and continue: 110 / 639

Step 3:
When dividing 110 by 639, we get 0 with a remainder of 110.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 110 after subtracting 0 from 110.
Append the next digit (6) from the dividend to 110 and continue with: 1106 / 639

Step 4:
639 can be fit into 1106 1 times, resulting in a remainder of 467.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 639 from 1106, we get 467.
Fetch the next digit (5) from the dividend, attach it to 467 and continue: 4675 / 639

Advancing to step 5:
4675 divided by 639 is 7 with a remainder of 202.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Deduct 4473 from 4675 and we're left with 202.
Fetch the next digit (6) from the dividend, attach it to 202 and continue: 2026 / 639

Moving on to step 6:
The number 639 fits into 2026 3 times, leaving a remainder of 109.
Write down 3 as next digit of the result. 
Result so far: 173.0
Subtracting 1917 from 2026 leaves us with 109.
Include the next digit (6) from the dividend after 109, then repeat: 1096 / 639

Moving on to step 7:
639 can be fit into 1096 1 times, resulting in a remainder of 457.
Write down 1 as next digit of the result. 
Result so far: 1731.0
If we take 639 away from 1096, we end up with 457.
Fetch the next digit (1) from the dividend, attach it to 457 and continue: 4571 / 639

On to step 8:
4571 divided by 639 is 7 with a remainder of 98.
Put 7 as the next digit of the answer. 
Result so far: 17317.0
Subtract 4473 from 4571 to get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Step 9:
639 can be fit into 980 1 times, resulting in a remainder of 341.
The number 1 becomes the next digit in our result. 
Result so far: 17317.1
If we subtract 639 from 980, we get 341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Let's proceed to step 10:
If we divide 3410 by 639, we get 5 and a remainder of 215.
Record the quotient 5 as the next digit in the result. 
Result so far: 17317.15
Subtract 3195 from 3410 to get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Going ahead to step 11:
639 can be fit into 2150 3 times, resulting in a remainder of 233.
Write down 3 as next digit of the result. 
Result so far: 17317.153
If we take 1917 away from 2150, we end up with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Let's proceed to step 12:
When dividing 2330 by 639, we get 3 with a remainder of 413.
The next digit of our result is 3. 
Result so far: 17317.1533
Deduct 1917 from 2330 and we're left with 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

After the division, we end up with 17317.1533 and a remainder of 0.00413.