891453 divided by 77 
The aim is to understand the frequency of 77 in 891453.

Going ahead to step 1:
77 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 77

Advancing to step 2:
89 divided by 77 is 1 with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 77 away from 89, we end up with 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 77

Let's proceed to step 3:
77 goes into 121 1 times with a remainder of 44.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Deduct 77 from 121 and we're left with 44.
Take the next digit (4) from the dividend and append it to 44, then repeat: 444 / 77

Let's proceed to step 4:
If we divide 444 by 77, we get 5 and a remainder of 59.
Put 5 as the next digit of the answer. 
Result so far: 115.0
Subtract 385 from 444 to get 59.
Include the next digit (5) from the dividend after 59, then repeat: 595 / 77

Moving on to step 5:
The number 77 fits into 595 7 times, leaving a remainder of 56.
Write down 7 as next digit of the result. 
Result so far: 1157.0
If we take 539 away from 595, we end up with 56.
Take the next digit (3) from the dividend and append it to 56, then repeat: 563 / 77

Let's proceed to step 6:
77 goes into 563 7 times with a remainder of 24.
Put 7 as the next digit of the answer. 
Result so far: 11577.0
Deduct 539 from 563 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 7:
77 can be fit into 240 3 times, resulting in a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 11577.3
If we subtract 231 from 240, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 8:
77 goes into 90 1 times with a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 11577.31
If we take 77 away from 90, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 9:
If we divide 130 by 77, we get 1 and a remainder of 53.
Use 1 as the next digit of our solution. 
Result so far: 11577.311
Deduct 77 from 130 and we're left with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

After the division, we end up with 11577.311 and a remainder of 0.0053.