We look at the division of 66142907 by 712 
The aim is to understand the frequency of 712 in 66142907.

Going ahead to step 1:
712 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 712

Advancing to step 2:
The number 712 fits into 66 0 times, leaving a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Fetch the next digit (1) from the dividend, attach it to 66 and continue: 661 / 712

On to step 3:
712 goes into 661 0 times with a remainder of 661.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 661, we end up with 661.
Append the next digit (4) from the dividend to 661 and continue with: 6614 / 712

Step 4:
If we divide 6614 by 712, we get 9 and a remainder of 206.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 6408 from 6614, we get 206.
Bring next digit (2) of the dividend behind the 206 and repeat the process: 2062 / 712

Moving on to step 5:
712 can be fit into 2062 2 times, resulting in a remainder of 638.
The next digit of our result is 2. 
Result so far: 92.0
If we take 1424 away from 2062, we end up with 638.
Fetch the next digit (9) from the dividend, attach it to 638 and continue: 6389 / 712

Moving on to step 6:
712 goes into 6389 8 times with a remainder of 693.
Use 8 as the next digit of our solution. 
Result so far: 928.0
Subtracting 5696 from 6389 leaves us with 693.
Take the next digit (0) from the dividend and append it to 693, then repeat: 6930 / 712

Let's proceed to step 7:
712 can be fit into 6930 9 times, resulting in a remainder of 522.
Write down 9 as next digit of the result. 
Result so far: 9289.0
The remainder is 522 after subtracting 6408 from 6930.
Append the next digit (7) from the dividend to 522 and continue with: 5227 / 712

Going ahead to step 8:
712 can be fit into 5227 7 times, resulting in a remainder of 243.
Put 7 as the next digit of the answer. 
Result so far: 92897.0
If we take 4984 away from 5227, we end up with 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Going ahead to step 9:
2430 divided by 712 is 3 with a remainder of 294.
The next digit of our result is 3. 
Result so far: 92897.3
Subtract 2136 from 2430 to get 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Moving on to step 10:
If we divide 2940 by 712, we get 4 and a remainder of 92.
The number 4 becomes the next digit in our result. 
Result so far: 92897.34
Subtracting 2848 from 2940 leaves us with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 11:
712 can be fit into 920 1 times, resulting in a remainder of 208.
The next digit of our result is 1. 
Result so far: 92897.341
Deduct 712 from 920 and we're left with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Step 12:
When dividing 2080 by 712, we get 2 with a remainder of 656.
The number 2 becomes the next digit in our result. 
Result so far: 92897.3412
Subtract 1424 from 2080 to get 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Moving on to step 13:
712 can be fit into 6560 9 times, resulting in a remainder of 152.
The next digit of our result is 9. 
Result so far: 92897.34129
If we subtract 6408 from 6560, we 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.

Moving on to step 14:
When dividing 1520 by 712, we get 2 with a remainder of 96.
The next digit of our result is 2. 
Result so far: 92897.341292
Deduct 1424 from 1520 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 15:
960 divided by 712 is 1 with a remainder of 248.
The number 1 becomes the next digit in our result. 
Result so far: 92897.3412921
Subtracting 712 from 960 leaves us with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

On to step 16:
The number 712 fits into 2480 3 times, leaving a remainder of 344.
The number 3 becomes the next digit in our result. 
Result so far: 92897.34129213
Deduct 2136 from 2480 and we're left with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

The final outcome is 92897.34129213, with a leftover of 3.44e-07.