76185619 divided by 966 
The aim is to understand the frequency of 966 in 76185619.

Moving on to step 1:
The number 966 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 966

Advancing to step 2:
The number 966 fits into 76 0 times, leaving a remainder of 76.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 76 leaves us with 76.
Bring next digit (1) of the dividend behind the 76 and repeat the process: 761 / 966

Going ahead to step 3:
If we divide 761 by 966, we get 0 and a remainder of 761.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 761 after subtracting 0 from 761.
Grab the next digit (8) from the dividend, add it to 761, then carry on: 7618 / 966

Advancing to step 4:
If we divide 7618 by 966, we get 7 and a remainder of 856.
The next digit of our result is 7. 
Result so far: 7.0
Subtracting 6762 from 7618 leaves us with 856.
Include the next digit (5) from the dividend after 856, then repeat: 8565 / 966

Moving on to step 5:
8565 divided by 966 is 8 with a remainder of 837.
Put 8 as the next digit of the answer. 
Result so far: 78.0
Subtracting 7728 from 8565 leaves us with 837.
Grab the next digit (6) from the dividend, add it to 837, then carry on: 8376 / 966

Step 6:
When dividing 8376 by 966, we get 8 with a remainder of 648.
The next digit of our result is 8. 
Result so far: 788.0
Deduct 7728 from 8376 and we're left with 648.
Append the next digit (1) from the dividend to 648 and continue with: 6481 / 966

Advancing to step 7:
The number 966 fits into 6481 6 times, leaving a remainder of 685.
The next digit of our result is 6. 
Result so far: 7886.0
If we take 5796 away from 6481, we end up with 685.
Grab the next digit (9) from the dividend, add it to 685, then carry on: 6859 / 966

Going ahead to step 8:
966 goes into 6859 7 times with a remainder of 97.
Record the quotient 7 as the next digit in the result. 
Result so far: 78867.0
Subtract 6762 from 6859 to get 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Advancing to step 9:
966 goes into 970 1 times with a remainder of 4.
The next digit of our result is 1. 
Result so far: 78867.1
Subtract 966 from 970 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 10:
The number 966 fits into 40 0 times, leaving a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 78867.1
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 11:
When dividing 400 by 966, we get 0 with a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 78867.1
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final outcome is 78867.1, with a leftover of 0.04.