66704666 divided by 615 
The aim is to understand the frequency of 615 in 66704666.

On to step 1:
6 divided by 615 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 615

Moving on to step 2:
615 goes into 66 0 times with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Include the next digit (7) from the dividend after 66, then repeat: 667 / 615

On to step 3:
667 divided by 615 is 1 with a remainder of 52.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 615 from 667 and we're left with 52.
Fetch the next digit (0) from the dividend, attach it to 52 and continue: 520 / 615

Step 4:
When dividing 520 by 615, we get 0 with a remainder of 520.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 520 leaves us with 520.
Append the next digit (4) from the dividend to 520 and continue with: 5204 / 615

Going ahead to step 5:
5204 divided by 615 is 8 with a remainder of 284.
Write down 8 as next digit of the result. 
Result so far: 108.0
Subtracting 4920 from 5204 leaves us with 284.
Grab the next digit (6) from the dividend, add it to 284, then carry on: 2846 / 615

Moving on to step 6:
615 goes into 2846 4 times with a remainder of 386.
Use 4 as the next digit of our solution. 
Result so far: 1084.0
Subtract 2460 from 2846 to get 386.
Include the next digit (6) from the dividend after 386, then repeat: 3866 / 615

Advancing to step 7:
615 can be fit into 3866 6 times, resulting in a remainder of 176.
Use 6 as the next digit of our solution. 
Result so far: 10846.0
If we subtract 3690 from 3866, we get 176.
Append the next digit (6) from the dividend to 176 and continue with: 1766 / 615

Let's proceed to step 8:
If we divide 1766 by 615, we get 2 and a remainder of 536.
Write down 2 as next digit of the result. 
Result so far: 108462.0
Subtract 1230 from 1766 to get 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Let's proceed to step 9:
615 can be fit into 5360 8 times, resulting in a remainder of 440.
The number 8 becomes the next digit in our result. 
Result so far: 108462.8
Deduct 4920 from 5360 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Let's proceed to step 10:
4400 divided by 615 is 7 with a remainder of 95.
Record the quotient 7 as the next digit in the result. 
Result so far: 108462.87
The remainder is 95 after subtracting 4305 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Step 11:
If we divide 950 by 615, we get 1 and a remainder of 335.
The number 1 becomes the next digit in our result. 
Result so far: 108462.871
If we take 615 away from 950, we end up with 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

Step 12:
615 goes into 3350 5 times with a remainder of 275.
Write down 5 as next digit of the result. 
Result so far: 108462.8715
The remainder is 275 after subtracting 3075 from 3350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Moving on to step 13:
615 can be fit into 2750 4 times, resulting in a remainder of 290.
The next digit of our result is 4. 
Result so far: 108462.87154
The remainder is 290 after subtracting 2460 from 2750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Step 14:
615 goes into 2900 4 times with a remainder of 440.
Record the quotient 4 as the next digit in the result. 
Result so far: 108462.871544
Subtracting 2460 from 2900 leaves us with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

After the division, we end up with 108462.871544 and a remainder of 4.4e-05.