We divide 84677874 by 661
The aim is to understand the frequency of 661 in 84677874.

Step 1:
If we divide 8 by 661, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 661

On to step 2:
When dividing 84 by 661, we get 0 with a remainder of 84.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 84 to get 84.
Include the next digit (6) from the dividend after 84, then repeat: 846 / 661

Step 3:
When dividing 846 by 661, we get 1 with a remainder of 185.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 185 after subtracting 661 from 846.
Include the next digit (7) from the dividend after 185, then repeat: 1857 / 661

Let's proceed to step 4:
If we divide 1857 by 661, we get 2 and a remainder of 535.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we take 1322 away from 1857, we end up with 535.
Take the next digit (7) from the dividend and append it to 535, then repeat: 5357 / 661

Advancing to step 5:
The number 661 fits into 5357 8 times, leaving a remainder of 69.
The number 8 becomes the next digit in our result. 
Result so far: 128.0
Subtract 5288 from 5357 to get 69.
Append the next digit (8) from the dividend to 69 and continue with: 698 / 661

On to step 6:
698 divided by 661 is 1 with a remainder of 37.
The number 1 becomes the next digit in our result. 
Result so far: 1281.0
Deduct 661 from 698 and we're left with 37.
Include the next digit (7) from the dividend after 37, then repeat: 377 / 661

Advancing to step 7:
The number 661 fits into 377 0 times, leaving a remainder of 377.
Write down 0 as next digit of the result. 
Result so far: 12810.0
If we subtract 0 from 377, we get 377.
Fetch the next digit (4) from the dividend, attach it to 377 and continue: 3774 / 661

Going ahead to step 8:
When dividing 3774 by 661, we get 5 with a remainder of 469.
Write down 5 as next digit of the result. 
Result so far: 128105.0
If we take 3305 away from 3774, we end up with 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

On to step 9:
When dividing 4690 by 661, we get 7 with a remainder of 63.
Write down 7 as next digit of the result. 
Result so far: 128105.7
If we subtract 4627 from 4690, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 10:
661 can be fit into 630 0 times, resulting in a remainder of 630.
Record the quotient 0 as the next digit in the result. 
Result so far: 128105.7
If we subtract 0 from 630, we get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Advancing to step 11:
When dividing 6300 by 661, we get 9 with a remainder of 351.
Record the quotient 9 as the next digit in the result. 
Result so far: 128105.709
Deduct 5949 from 6300 and we're left with 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

Step 12:
The number 661 fits into 3510 5 times, leaving a remainder of 205.
Use 5 as the next digit of our solution. 
Result so far: 128105.7095
Subtract 3305 from 3510 to get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 13:
When dividing 2050 by 661, we get 3 with a remainder of 67.
Put 3 as the next digit of the answer. 
Result so far: 128105.70953
Subtracting 1983 from 2050 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 14:
661 goes into 670 1 times with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 128105.709531
Subtract 661 from 670 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 15:
661 goes into 90 0 times with a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 128105.709531
If we take 0 away from 90, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 16:
If we divide 900 by 661, we get 1 and a remainder of 239.
Write down 1 as next digit of the result. 
Result so far: 128105.70953101
Deduct 661 from 900 and we're left with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

The final outcome is 128105.70953101, with a leftover of 2.39e-07.