Let's divide 611621 by 77
The aim is to understand the frequency of 77 in 611621.

On to step 1:
77 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 77

On to step 2:
77 can be fit into 61 0 times, resulting in a remainder of 61.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 61, we end up with 61.
Bring next digit (1) of the dividend behind the 61 and repeat the process: 611 / 77

Let's proceed to step 3:
77 goes into 611 7 times with a remainder of 72.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 539 from 611 leaves us with 72.
Include the next digit (6) from the dividend after 72, then repeat: 726 / 77

On to step 4:
If we divide 726 by 77, we get 9 and a remainder of 33.
The number 9 becomes the next digit in our result. 
Result so far: 79.0
If we subtract 693 from 726, we get 33.
Grab the next digit (2) from the dividend, add it to 33, then carry on: 332 / 77

Moving on to step 5:
77 goes into 332 4 times with a remainder of 24.
The next digit of our result is 4. 
Result so far: 794.0
If we take 308 away from 332, we end up with 24.
Fetch the next digit (1) from the dividend, attach it to 24 and continue: 241 / 77

Let's proceed to step 6:
241 divided by 77 is 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 7943.0
The remainder is 10 after subtracting 231 from 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
The number 77 fits into 100 1 times, leaving a remainder of 23.
Write down 1 as next digit of the result. 
Result so far: 7943.1
Subtract 77 from 100 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 8:
When dividing 230 by 77, we get 2 with a remainder of 76.
The number 2 becomes the next digit in our result. 
Result so far: 7943.12
The remainder is 76 after subtracting 154 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 9:
760 divided by 77 is 9 with a remainder of 67.
Write down 9 as next digit of the result. 
Result so far: 7943.129
Subtract 693 from 760 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 10:
77 goes into 670 8 times with a remainder of 54.
Write down 8 as next digit of the result. 
Result so far: 7943.1298
Subtract 616 from 670 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 11:
If we divide 540 by 77, we get 7 and a remainder of 1.
The next digit of our result is 7. 
Result so far: 7943.12987
Subtracting 539 from 540 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 12:
If we divide 10 by 77, we get 0 and a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 7943.12987
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 13:
77 can be fit into 100 1 times, resulting in a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 7943.1298701
If we subtract 77 from 100, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 14:
77 can be fit into 230 2 times, resulting in a remainder of 76.
Put 2 as the next digit of the answer. 
Result so far: 7943.12987012
Subtract 154 from 230 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

The quotient of the division is 7943.12987012, and the remainder is 7.6e-08.