630200 divided by 77 
The aim is to understand the frequency of 77 in 630200.

Going ahead to step 1:
77 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 77

Let's proceed to step 2:
If we divide 63 by 77, we get 0 and a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Fetch the next digit (0) from the dividend, attach it to 63 and continue: 630 / 77

Going ahead to step 3:
630 divided by 77 is 8 with a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtracting 616 from 630 leaves us with 14.
Take the next digit (2) from the dividend and append it to 14, then repeat: 142 / 77

Step 4:
77 goes into 142 1 times with a remainder of 65.
Use 1 as the next digit of our solution. 
Result so far: 81.0
If we subtract 77 from 142, we get 65.
Take the next digit (0) from the dividend and append it to 65, then repeat: 650 / 77

Step 5:
650 divided by 77 is 8 with a remainder of 34.
The number 8 becomes the next digit in our result. 
Result so far: 818.0
The remainder is 34 after subtracting 616 from 650.
Fetch the next digit (0) from the dividend, attach it to 34 and continue: 340 / 77

Step 6:
340 divided by 77 is 4 with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 8184.0
Subtracting 308 from 340 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 7:
The number 77 fits into 320 4 times, leaving a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 8184.4
Subtract 308 from 320 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 8:
120 divided by 77 is 1 with a remainder of 43.
Record the quotient 1 as the next digit in the result. 
Result so far: 8184.41
Subtract 77 from 120 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 9:
If we divide 430 by 77, we get 5 and a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 8184.415
Subtracting 385 from 430 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 10:
The number 77 fits into 450 5 times, leaving a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 8184.4155
Subtract 385 from 450 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final outcome is 8184.4155, with a leftover of 0.00065.