Let's divide 57863 by 66
The aim is to understand the frequency of 66 in 57863.

Going ahead to step 1:
The number 66 fits into 5 0 times, leaving 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.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 66

Step 2:
The number 66 fits into 57 0 times, leaving a remainder of 57.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 57 and we're left with 57.
Bring next digit (8) of the dividend behind the 57 and repeat the process: 578 / 66

Advancing to step 3:
66 can be fit into 578 8 times, resulting in a remainder of 50.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 50 after subtracting 528 from 578.
Append the next digit (6) from the dividend to 50 and continue with: 506 / 66

Step 4:
The number 66 fits into 506 7 times, leaving a remainder of 44.
Put 7 as the next digit of the answer. 
Result so far: 87.0
Deduct 462 from 506 and we're left with 44.
Grab the next digit (3) from the dividend, add it to 44, then carry on: 443 / 66

Advancing to step 5:
When dividing 443 by 66, we get 6 with a remainder of 47.
Record the quotient 6 as the next digit in the result. 
Result so far: 876.0
Subtracting 396 from 443 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 6:
The number 66 fits into 470 7 times, leaving a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 876.7
The remainder is 8 after subtracting 462 from 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 7:
66 can be fit into 80 1 times, resulting in a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 876.71
If we take 66 away from 80, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 8:
66 can be fit into 140 2 times, resulting in a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 876.712
If we take 132 away from 140, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 9:
80 divided by 66 is 1 with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 876.7121
If we take 66 away from 80, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 10:
66 can be fit into 140 2 times, resulting in a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 876.71212
Deduct 132 from 140 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 11:
80 divided by 66 is 1 with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 876.712121
The remainder is 14 after subtracting 66 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 12:
66 goes into 140 2 times with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 876.7121212
Subtract 132 from 140 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 13:
When dividing 80 by 66, we get 1 with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 876.71212121
Subtract 66 from 80 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The quotient of the division is 876.71212121, and the remainder is 1.4e-08.