59131469 ÷ 66 
The aim is to understand the frequency of 66 in 59131469.

On to step 1:
When dividing 5 by 66, we get 0 with 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.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 66

Let's proceed to step 2:
66 goes into 59 0 times with a remainder of 59.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 59, we end up with 59.
Bring next digit (1) of the dividend behind the 59 and repeat the process: 591 / 66

Moving on to step 3:
When dividing 591 by 66, we get 8 with a remainder of 63.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 528 away from 591, we end up with 63.
Append the next digit (3) from the dividend to 63 and continue with: 633 / 66

Going ahead to step 4:
66 can be fit into 633 9 times, resulting in a remainder of 39.
Use 9 as the next digit of our solution. 
Result so far: 89.0
Subtracting 594 from 633 leaves us with 39.
Include the next digit (1) from the dividend after 39, then repeat: 391 / 66

On to step 5:
When dividing 391 by 66, we get 5 with a remainder of 61.
The next digit of our result is 5. 
Result so far: 895.0
Subtract 330 from 391 to get 61.
Bring next digit (4) of the dividend behind the 61 and repeat the process: 614 / 66

Advancing to step 6:
If we divide 614 by 66, we get 9 and a remainder of 20.
Record the quotient 9 as the next digit in the result. 
Result so far: 8959.0
If we subtract 594 from 614, we get 20.
Append the next digit (6) from the dividend to 20 and continue with: 206 / 66

Step 7:
If we divide 206 by 66, we get 3 and a remainder of 8.
The next digit of our result is 3. 
Result so far: 89593.0
Deduct 198 from 206 and we're left with 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 66

Going ahead to step 8:
66 goes into 89 1 times with a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 895931.0
The remainder is 23 after subtracting 66 from 89.
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 9:
230 divided by 66 is 3 with a remainder of 32.
The number 3 becomes the next digit in our result. 
Result so far: 895931.3
Deduct 198 from 230 and we're left 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.

Step 10:
The number 66 fits into 320 4 times, leaving a remainder of 56.
The next digit of our result is 4. 
Result so far: 895931.34
The remainder is 56 after subtracting 264 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 11:
66 goes into 560 8 times with a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 895931.348
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.

Going ahead to step 12:
320 divided by 66 is 4 with a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 895931.3484
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.

Let's proceed to step 13:
When dividing 560 by 66, we get 8 with a remainder of 32.
The next digit of our result is 8. 
Result so far: 895931.34848
If we subtract 528 from 560, we 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.

Let's proceed to step 14:
66 goes into 320 4 times with a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 895931.348484
Subtracting 264 from 320 leaves us 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 15:
The number 66 fits into 560 8 times, leaving a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 895931.3484848
Deduct 528 from 560 and we're left 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 16:
66 can be fit into 320 4 times, resulting in a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 895931.34848484
The remainder is 56 after subtracting 264 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final outcome is 895931.34848484, with a leftover of 5.6e-08.