We look at the division of 53992 by 77 
The aim is to understand the frequency of 77 in 53992.

Moving on to step 1:
The number 77 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 77

Step 2:
77 goes into 53 0 times with a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 53 after subtracting 0 from 53.
Fetch the next digit (9) from the dividend, attach it to 53 and continue: 539 / 77

Going ahead to step 3:
When dividing 539 by 77, we get 7 with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 539 from 539, we get 0.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 77

Let's proceed to step 4:
77 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 70.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (2) from the dividend, add it to 9, then carry on: 92 / 77

Let's proceed to step 5:
If we divide 92 by 77, we get 1 and a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 701.0
If we subtract 77 from 92, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 6:
When dividing 150 by 77, we get 1 with a remainder of 73.
Write down 1 as next digit of the result. 
Result so far: 701.1
Deduct 77 from 150 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 7:
77 can be fit into 730 9 times, resulting in a remainder of 37.
Put 9 as the next digit of the answer. 
Result so far: 701.19
If we take 693 away from 730, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 8:
77 goes into 370 4 times with a remainder of 62.
Write down 4 as next digit of the result. 
Result so far: 701.194
The remainder is 62 after subtracting 308 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 9:
77 can be fit into 620 8 times, resulting in a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 701.1948
If we subtract 616 from 620, we 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.

Let's proceed to step 10:
77 can be fit into 40 0 times, resulting in a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 701.1948
Subtracting 0 from 40 leaves us 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.

Let's proceed to step 11:
77 goes into 400 5 times with a remainder of 15.
The next digit of our result is 5. 
Result so far: 701.194805
Subtracting 385 from 400 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 12:
If we divide 150 by 77, we get 1 and a remainder of 73.
The number 1 becomes the next digit in our result. 
Result so far: 701.1948051
If we take 77 away from 150, we end up with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 13:
When dividing 730 by 77, we get 9 with a remainder of 37.
The next digit of our result is 9. 
Result so far: 701.19480519
Deduct 693 from 730 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

After the division, we end up with 701.19480519 and a remainder of 3.7e-08.