We look at the division of 701009 by 77 
The aim is to understand the frequency of 77 in 701009.

Step 1:
The number 77 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 77

Moving on to step 2:
If we divide 70 by 77, we get 0 and a remainder of 70.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 70 leaves us with 70.
Fetch the next digit (1) from the dividend, attach it to 70 and continue: 701 / 77

On to step 3:
The number 77 fits into 701 9 times, leaving a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we take 693 away from 701, we end up with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 77

Moving on to step 4:
If we divide 80 by 77, we get 1 and a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 91.0
Deduct 77 from 80 and we're left with 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 77

Let's proceed to step 5:
77 goes into 30 0 times with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 910.0
Deduct 0 from 30 and we're left with 30.
Fetch the next digit (9) from the dividend, attach it to 30 and continue: 309 / 77

Advancing to step 6:
309 divided by 77 is 4 with a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 9104.0
Subtract 308 from 309 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
77 can be fit into 10 0 times, resulting in a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 9104.0
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
77 can be fit into 100 1 times, resulting in a remainder of 23.
The next digit of our result is 1. 
Result so far: 9104.01
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.

Advancing to step 9:
230 divided by 77 is 2 with a remainder of 76.
The next digit of our result is 2. 
Result so far: 9104.012
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.

On to step 10:
The number 77 fits into 760 9 times, leaving a remainder of 67.
Write down 9 as next digit of the result. 
Result so far: 9104.0129
If we subtract 693 from 760, we 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.

Going ahead to step 11:
If we divide 670 by 77, we get 8 and a remainder of 54.
Record the quotient 8 as the next digit in the result. 
Result so far: 9104.01298
If we subtract 616 from 670, we 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 12:
When dividing 540 by 77, we get 7 with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 9104.012987
Deduct 539 from 540 and we're left 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.

Advancing to step 13:
The number 77 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 9104.012987
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 14:
If we divide 100 by 77, we get 1 and a remainder of 23.
Record the quotient 1 as the next digit in the result. 
Result so far: 9104.01298701
The remainder is 23 after subtracting 77 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

The final result is 9104.01298701 with a remainder of 2.3e-08.