We divide 217622 by 77
The aim is to understand the frequency of 77 in 217622.

Moving on to step 1:
The number 77 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 77

Let's proceed to step 2:
77 can be fit into 21 0 times, resulting in a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Fetch the next digit (7) from the dividend, attach it to 21 and continue: 217 / 77

On to step 3:
217 divided by 77 is 2 with a remainder of 63.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 154 from 217, we get 63.
Bring next digit (6) of the dividend behind the 63 and repeat the process: 636 / 77

On to step 4:
If we divide 636 by 77, we get 8 and a remainder of 20.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
Deduct 616 from 636 and we're left with 20.
Take the next digit (2) from the dividend and append it to 20, then repeat: 202 / 77

Moving on to step 5:
When dividing 202 by 77, we get 2 with a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 282.0
If we subtract 154 from 202, we get 48.
Include the next digit (2) from the dividend after 48, then repeat: 482 / 77

Moving on to step 6:
77 goes into 482 6 times with a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 2826.0
The remainder is 20 after subtracting 462 from 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 7:
The number 77 fits into 200 2 times, leaving a remainder of 46.
Record the quotient 2 as the next digit in the result. 
Result so far: 2826.2
Subtracting 154 from 200 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 8:
When dividing 460 by 77, we get 5 with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 2826.25
The remainder is 75 after subtracting 385 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 9:
77 goes into 750 9 times with a remainder of 57.
The number 9 becomes the next digit in our result. 
Result so far: 2826.259
If we subtract 693 from 750, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 10:
When dividing 570 by 77, we get 7 with a remainder of 31.
The number 7 becomes the next digit in our result. 
Result so far: 2826.2597
Subtract 539 from 570 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 11:
When dividing 310 by 77, we get 4 with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 2826.25974
Subtracting 308 from 310 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 12:
When dividing 20 by 77, we get 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 2826.25974
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 13:
77 can be fit into 200 2 times, resulting in a remainder of 46.
Put 2 as the next digit of the answer. 
Result so far: 2826.2597402
Subtracting 154 from 200 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 14:
If we divide 460 by 77, we get 5 and a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 2826.25974025
Subtracting 385 from 460 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

After the division, we end up with 2826.25974025 and a remainder of 7.5e-08.