We're dividing 762448 by 77 
The aim is to understand the frequency of 77 in 762448.

Step 1:
77 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 77

Step 2:
77 goes into 76 0 times with a remainder of 76.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 76 and we're left with 76.
Bring next digit (2) of the dividend behind the 76 and repeat the process: 762 / 77

Moving on to step 3:
The number 77 fits into 762 9 times, leaving a remainder of 69.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 69 after subtracting 693 from 762.
Append the next digit (4) from the dividend to 69 and continue with: 694 / 77

Step 4:
If we divide 694 by 77, we get 9 and a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 99.0
Subtract 693 from 694 to get 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 77

Let's proceed to step 5:
77 goes into 14 0 times with a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 990.0
Subtract 0 from 14 to get 14.
Bring next digit (8) of the dividend behind the 14 and repeat the process: 148 / 77

Advancing to step 6:
The number 77 fits into 148 1 times, leaving a remainder of 71.
The next digit of our result is 1. 
Result so far: 9901.0
The remainder is 71 after subtracting 77 from 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Advancing to step 7:
If we divide 710 by 77, we get 9 and a remainder of 17.
Use 9 as the next digit of our solution. 
Result so far: 9901.9
Subtracting 693 from 710 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 8:
When dividing 170 by 77, we get 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 9901.92
Subtract 154 from 170 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
When dividing 160 by 77, we get 2 with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 9901.922
Subtracting 154 from 160 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The quotient of the division is 9901.922, and the remainder is 0.0006.