We look at the division of 66447975 by 670 
The aim is to understand the frequency of 670 in 66447975.

Going ahead to step 1:
6 divided by 670 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 670

Going ahead to step 2:
If we divide 66 by 670, we get 0 and a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Append the next digit (4) from the dividend to 66 and continue with: 664 / 670

Moving on to step 3:
670 goes into 664 0 times with a remainder of 664.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 664, we end up with 664.
Bring next digit (4) of the dividend behind the 664 and repeat the process: 6644 / 670

Moving on to step 4:
6644 divided by 670 is 9 with a remainder of 614.
The next digit of our result is 9. 
Result so far: 9.0
If we subtract 6030 from 6644, we get 614.
Grab the next digit (7) from the dividend, add it to 614, then carry on: 6147 / 670

Advancing to step 5:
670 can be fit into 6147 9 times, resulting in a remainder of 117.
Put 9 as the next digit of the answer. 
Result so far: 99.0
If we take 6030 away from 6147, we end up with 117.
Take the next digit (9) from the dividend and append it to 117, then repeat: 1179 / 670

On to step 6:
The number 670 fits into 1179 1 times, leaving a remainder of 509.
The number 1 becomes the next digit in our result. 
Result so far: 991.0
The remainder is 509 after subtracting 670 from 1179.
Fetch the next digit (7) from the dividend, attach it to 509 and continue: 5097 / 670

Moving on to step 7:
670 can be fit into 5097 7 times, resulting in a remainder of 407.
Record the quotient 7 as the next digit in the result. 
Result so far: 9917.0
Subtract 4690 from 5097 to get 407.
Include the next digit (5) from the dividend after 407, then repeat: 4075 / 670

Moving on to step 8:
670 goes into 4075 6 times with a remainder of 55.
The number 6 becomes the next digit in our result. 
Result so far: 99176.0
If we subtract 4020 from 4075, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 9:
550 divided by 670 is 0 with a remainder of 550.
Write down 0 as next digit of the result. 
Result so far: 99176.0
If we take 0 away from 550, we end up with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Let's proceed to step 10:
5500 divided by 670 is 8 with a remainder of 140.
Put 8 as the next digit of the answer. 
Result so far: 99176.08
Subtracting 5360 from 5500 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 11:
If we divide 1400 by 670, we get 2 and a remainder of 60.
Write down 2 as next digit of the result. 
Result so far: 99176.082
Subtract 1340 from 1400 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 12:
If we divide 600 by 670, we get 0 and a remainder of 600.
Write down 0 as next digit of the result. 
Result so far: 99176.082
The remainder is 600 after subtracting 0 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

On to step 13:
670 goes into 6000 8 times with a remainder of 640.
Put 8 as the next digit of the answer. 
Result so far: 99176.08208
Subtract 5360 from 6000 to get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Going ahead to step 14:
670 goes into 6400 9 times with a remainder of 370.
Write down 9 as next digit of the result. 
Result so far: 99176.082089
Deduct 6030 from 6400 and we're left with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Let's proceed to step 15:
When dividing 3700 by 670, we get 5 with a remainder of 350.
The number 5 becomes the next digit in our result. 
Result so far: 99176.0820895
Subtracting 3350 from 3700 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

On to step 16:
If we divide 3500 by 670, we get 5 and a remainder of 150.
The next digit of our result is 5. 
Result so far: 99176.08208955
Subtract 3350 from 3500 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

In conclusion, the division gives 99176.08208955 with a balance of 1.5e-07.