66934654 ÷ 664 
The aim is to understand the frequency of 664 in 66934654.

Moving on to step 1:
When dividing 6 by 664, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 664

Going ahead to step 2:
664 goes into 66 0 times with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Bring next digit (9) of the dividend behind the 66 and repeat the process: 669 / 664

Moving on to step 3:
664 goes into 669 1 times with a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 664 away from 669, we end up with 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 664

Advancing to step 4:
53 divided by 664 is 0 with a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Deduct 0 from 53 and we're left with 53.
Grab the next digit (4) from the dividend, add it to 53, then carry on: 534 / 664

Step 5:
664 can be fit into 534 0 times, resulting in a remainder of 534.
Record the quotient 0 as the next digit in the result. 
Result so far: 100.0
Subtract 0 from 534 to get 534.
Take the next digit (6) from the dividend and append it to 534, then repeat: 5346 / 664

Going ahead to step 6:
When dividing 5346 by 664, we get 8 with a remainder of 34.
The number 8 becomes the next digit in our result. 
Result so far: 1008.0
If we subtract 5312 from 5346, we get 34.
Append the next digit (5) from the dividend to 34 and continue with: 345 / 664

Step 7:
664 can be fit into 345 0 times, resulting in a remainder of 345.
Use 0 as the next digit of our solution. 
Result so far: 10080.0
The remainder is 345 after subtracting 0 from 345.
Include the next digit (4) from the dividend after 345, then repeat: 3454 / 664

Going ahead to step 8:
664 can be fit into 3454 5 times, resulting in a remainder of 134.
The number 5 becomes the next digit in our result. 
Result so far: 100805.0
Subtract 3320 from 3454 to get 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Going ahead to step 9:
When dividing 1340 by 664, we get 2 with a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 100805.2
If we take 1328 away from 1340, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 10:
When dividing 120 by 664, we get 0 with a remainder of 120.
Use 0 as the next digit of our solution. 
Result so far: 100805.2
Deduct 0 from 120 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 11:
1200 divided by 664 is 1 with a remainder of 536.
Put 1 as the next digit of the answer. 
Result so far: 100805.201
The remainder is 536 after subtracting 664 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

On to step 12:
When dividing 5360 by 664, we get 8 with a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 100805.2018
Deduct 5312 from 5360 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 13:
The number 664 fits into 480 0 times, leaving a remainder of 480.
Write down 0 as next digit of the result. 
Result so far: 100805.2018
If we subtract 0 from 480, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

On to step 14:
664 goes into 4800 7 times with a remainder of 152.
Record the quotient 7 as the next digit in the result. 
Result so far: 100805.201807
Subtract 4648 from 4800 to get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 15:
If we divide 1520 by 664, we get 2 and a remainder of 192.
The next digit of our result is 2. 
Result so far: 100805.2018072
If we subtract 1328 from 1520, we get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Step 16:
If we divide 1920 by 664, we get 2 and a remainder of 592.
The next digit of our result is 2. 
Result so far: 100805.20180722
Subtract 1328 from 1920 to get 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

The final outcome is 100805.20180722, with a leftover of 5.92e-07.