Let's divide 83378717 by 773
The aim is to understand the frequency of 773 in 83378717.

Going ahead to step 1:
The number 773 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 773

On to step 2:
If we divide 83 by 773, we get 0 and a remainder of 83.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 83 leaves us with 83.
Take the next digit (3) from the dividend and append it to 83, then repeat: 833 / 773

Step 3:
833 divided by 773 is 1 with a remainder of 60.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 773 from 833, we get 60.
Take the next digit (7) from the dividend and append it to 60, then repeat: 607 / 773

Let's proceed to step 4:
773 can be fit into 607 0 times, resulting in a remainder of 607.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtracting 0 from 607 leaves us with 607.
Fetch the next digit (8) from the dividend, attach it to 607 and continue: 6078 / 773

Moving on to step 5:
The number 773 fits into 6078 7 times, leaving a remainder of 667.
The number 7 becomes the next digit in our result. 
Result so far: 107.0
Subtract 5411 from 6078 to get 667.
Take the next digit (7) from the dividend and append it to 667, then repeat: 6677 / 773

Going ahead to step 6:
773 goes into 6677 8 times with a remainder of 493.
Record the quotient 8 as the next digit in the result. 
Result so far: 1078.0
The remainder is 493 after subtracting 6184 from 6677.
Bring next digit (1) of the dividend behind the 493 and repeat the process: 4931 / 773

On to step 7:
If we divide 4931 by 773, we get 6 and a remainder of 293.
Put 6 as the next digit of the answer. 
Result so far: 10786.0
The remainder is 293 after subtracting 4638 from 4931.
Grab the next digit (7) from the dividend, add it to 293, then carry on: 2937 / 773

Going ahead to step 8:
The number 773 fits into 2937 3 times, leaving a remainder of 618.
Write down 3 as next digit of the result. 
Result so far: 107863.0
Deduct 2319 from 2937 and we're left with 618.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6180, and continue the process.

Going ahead to step 9:
773 can be fit into 6180 7 times, resulting in a remainder of 769.
The number 7 becomes the next digit in our result. 
Result so far: 107863.7
The remainder is 769 after subtracting 5411 from 6180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7690, and continue the process.

On to step 10:
The number 773 fits into 7690 9 times, leaving a remainder of 733.
The number 9 becomes the next digit in our result. 
Result so far: 107863.79
Subtracting 6957 from 7690 leaves us with 733.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7330, and continue the process.

On to step 11:
The number 773 fits into 7330 9 times, leaving a remainder of 373.
The number 9 becomes the next digit in our result. 
Result so far: 107863.799
Subtracting 6957 from 7330 leaves us with 373.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

The quotient of the division is 107863.799, and the remainder is 0.0373.