583793 divided by 66 
The aim is to understand the frequency of 66 in 583793.

On to step 1:
If we divide 5 by 66, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 66

Let's proceed to step 2:
When dividing 58 by 66, we get 0 with a remainder of 58.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 58, we end up with 58.
Append the next digit (3) from the dividend to 58 and continue with: 583 / 66

On to step 3:
66 goes into 583 8 times with a remainder of 55.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 528 from 583 leaves us with 55.
Include the next digit (7) from the dividend after 55, then repeat: 557 / 66

Advancing to step 4:
When dividing 557 by 66, we get 8 with a remainder of 29.
Record the quotient 8 as the next digit in the result. 
Result so far: 88.0
If we subtract 528 from 557, we get 29.
Include the next digit (9) from the dividend after 29, then repeat: 299 / 66

Moving on to step 5:
If we divide 299 by 66, we get 4 and a remainder of 35.
The number 4 becomes the next digit in our result. 
Result so far: 884.0
Subtracting 264 from 299 leaves us with 35.
Append the next digit (3) from the dividend to 35 and continue with: 353 / 66

Going ahead to step 6:
If we divide 353 by 66, we get 5 and a remainder of 23.
The number 5 becomes the next digit in our result. 
Result so far: 8845.0
Subtracting 330 from 353 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 7:
If we divide 230 by 66, we get 3 and a remainder of 32.
Put 3 as the next digit of the answer. 
Result so far: 8845.3
Subtracting 198 from 230 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 8:
When dividing 320 by 66, we get 4 with a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 8845.34
If we take 264 away from 320, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 9:
560 divided by 66 is 8 with a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 8845.348
Subtract 528 from 560 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 10:
66 can be fit into 320 4 times, resulting in a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 8845.3484
Deduct 264 from 320 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 11:
When dividing 560 by 66, we get 8 with a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 8845.34848
If we take 528 away from 560, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 12:
When dividing 320 by 66, we get 4 with a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 8845.348484
Subtract 264 from 320 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 13:
560 divided by 66 is 8 with a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 8845.3484848
The remainder is 32 after subtracting 528 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 14:
66 goes into 320 4 times with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 8845.34848484
If we subtract 264 from 320, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The quotient of the division is 8845.34848484, and the remainder is 5.6e-08.