We look at the division of 85614710 by 661 
The aim is to understand the frequency of 661 in 85614710.

Step 1:
661 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 661

Advancing to step 2:
85 divided by 661 is 0 with a remainder of 85.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Include the next digit (6) from the dividend after 85, then repeat: 856 / 661

On to step 3:
If we divide 856 by 661, we get 1 and a remainder of 195.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 661 from 856, we get 195.
Fetch the next digit (1) from the dividend, attach it to 195 and continue: 1951 / 661

Let's proceed to step 4:
The number 661 fits into 1951 2 times, leaving a remainder of 629.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 1322 from 1951 to get 629.
Fetch the next digit (4) from the dividend, attach it to 629 and continue: 6294 / 661

Going ahead to step 5:
6294 divided by 661 is 9 with a remainder of 345.
Use 9 as the next digit of our solution. 
Result so far: 129.0
Deduct 5949 from 6294 and we're left with 345.
Bring next digit (7) of the dividend behind the 345 and repeat the process: 3457 / 661

Moving on to step 6:
661 can be fit into 3457 5 times, resulting in a remainder of 152.
Record the quotient 5 as the next digit in the result. 
Result so far: 1295.0
Deduct 3305 from 3457 and we're left with 152.
Bring next digit (1) of the dividend behind the 152 and repeat the process: 1521 / 661

On to step 7:
661 goes into 1521 2 times with a remainder of 199.
Record the quotient 2 as the next digit in the result. 
Result so far: 12952.0
Subtracting 1322 from 1521 leaves us with 199.
Fetch the next digit (0) from the dividend, attach it to 199 and continue: 1990 / 661

Step 8:
661 can be fit into 1990 3 times, resulting in a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 129523.0
Subtracting 1983 from 1990 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 9:
If we divide 70 by 661, we get 0 and a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 129523.0
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 10:
661 goes into 700 1 times with a remainder of 39.
Record the quotient 1 as the next digit in the result. 
Result so far: 129523.01
Deduct 661 from 700 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 11:
661 goes into 390 0 times with a remainder of 390.
Write down 0 as next digit of the result. 
Result so far: 129523.01
The remainder is 390 after subtracting 0 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Moving on to step 12:
When dividing 3900 by 661, we get 5 with a remainder of 595.
Write down 5 as next digit of the result. 
Result so far: 129523.0105
Subtract 3305 from 3900 to get 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Let's proceed to step 13:
661 goes into 5950 9 times with a remainder of 1.
The next digit of our result is 9. 
Result so far: 129523.01059
Subtracting 5949 from 5950 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 14:
When dividing 10 by 661, we get 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 129523.01059
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 15:
If we divide 100 by 661, we get 0 and a remainder of 100.
Write down 0 as next digit of the result. 
Result so far: 129523.01059
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

In conclusion, the division gives 129523.01059 with a balance of 1e-06.