7712955 ÷ 661 
The aim is to understand the frequency of 661 in 7712955.

Step 1:
661 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 661

Let's proceed to step 2:
661 can be fit into 77 0 times, resulting in a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Append the next digit (1) from the dividend to 77 and continue with: 771 / 661

On to step 3:
When dividing 771 by 661, we get 1 with a remainder of 110.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 661 from 771 to get 110.
Include the next digit (2) from the dividend after 110, then repeat: 1102 / 661

Let's proceed to step 4:
661 can be fit into 1102 1 times, resulting in a remainder of 441.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Deduct 661 from 1102 and we're left with 441.
Append the next digit (9) from the dividend to 441 and continue with: 4419 / 661

On to step 5:
If we divide 4419 by 661, we get 6 and a remainder of 453.
Put 6 as the next digit of the answer. 
Result so far: 116.0
If we take 3966 away from 4419, we end up with 453.
Bring next digit (5) of the dividend behind the 453 and repeat the process: 4535 / 661

Advancing to step 6:
The number 661 fits into 4535 6 times, leaving a remainder of 569.
The next digit of our result is 6. 
Result so far: 1166.0
If we subtract 3966 from 4535, we get 569.
Fetch the next digit (5) from the dividend, attach it to 569 and continue: 5695 / 661

Moving on to step 7:
5695 divided by 661 is 8 with a remainder of 407.
Write down 8 as next digit of the result. 
Result so far: 11668.0
If we subtract 5288 from 5695, we get 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

On to step 8:
When dividing 4070 by 661, we get 6 with a remainder of 104.
Write down 6 as next digit of the result. 
Result so far: 11668.6
The remainder is 104 after subtracting 3966 from 4070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Moving on to step 9:
When dividing 1040 by 661, we get 1 with a remainder of 379.
Record the quotient 1 as the next digit in the result. 
Result so far: 11668.61
Subtracting 661 from 1040 leaves us with 379.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

On to step 10:
When dividing 3790 by 661, we get 5 with a remainder of 485.
Record the quotient 5 as the next digit in the result. 
Result so far: 11668.615
If we take 3305 away from 3790, we end up with 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

Moving on to step 11:
When dividing 4850 by 661, we get 7 with a remainder of 223.
Write down 7 as next digit of the result. 
Result so far: 11668.6157
Subtract 4627 from 4850 to get 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Moving on to step 12:
When dividing 2230 by 661, we get 3 with a remainder of 247.
The next digit of our result is 3. 
Result so far: 11668.61573
Deduct 1983 from 2230 and we're left with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Going ahead to step 13:
661 can be fit into 2470 3 times, resulting in a remainder of 487.
The number 3 becomes the next digit in our result. 
Result so far: 11668.615733
If we take 1983 away from 2470, we end up with 487.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4870, and continue the process.

After the division, we end up with 11668.615733 and a remainder of 4.87e-05.