237531 divided by 77 
The aim is to understand the frequency of 77 in 237531.

Going ahead to step 1:
2 divided by 77 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 77

On to step 2:
23 divided by 77 is 0 with a remainder of 23.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 23 and we're left with 23.
Take the next digit (7) from the dividend and append it to 23, then repeat: 237 / 77

Advancing to step 3:
237 divided by 77 is 3 with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 231 from 237 leaves us with 6.
Include the next digit (5) from the dividend after 6, then repeat: 65 / 77

On to step 4:
65 divided by 77 is 0 with a remainder of 65.
Write down 0 as next digit of the result. 
Result so far: 30.0
Subtract 0 from 65 to get 65.
Fetch the next digit (3) from the dividend, attach it to 65 and continue: 653 / 77

Moving on to step 5:
When dividing 653 by 77, we get 8 with a remainder of 37.
Write down 8 as next digit of the result. 
Result so far: 308.0
The remainder is 37 after subtracting 616 from 653.
Fetch the next digit (1) from the dividend, attach it to 37 and continue: 371 / 77

Moving on to step 6:
When dividing 371 by 77, we get 4 with a remainder of 63.
Use 4 as the next digit of our solution. 
Result so far: 3084.0
The remainder is 63 after subtracting 308 from 371.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 7:
If we divide 630 by 77, we get 8 and a remainder of 14.
The number 8 becomes the next digit in our result. 
Result so far: 3084.8
If we take 616 away from 630, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 8:
140 divided by 77 is 1 with a remainder of 63.
The number 1 becomes the next digit in our result. 
Result so far: 3084.81
If we subtract 77 from 140, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 9:
77 can be fit into 630 8 times, resulting in a remainder of 14.
Write down 8 as next digit of the result. 
Result so far: 3084.818
Subtract 616 from 630 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
When dividing 140 by 77, we get 1 with a remainder of 63.
Use 1 as the next digit of our solution. 
Result so far: 3084.8181
The remainder is 63 after subtracting 77 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Let's proceed to step 11:
If we divide 630 by 77, we get 8 and a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 3084.81818
Deduct 616 from 630 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 12:
When dividing 140 by 77, we get 1 with a remainder of 63.
Put 1 as the next digit of the answer. 
Result so far: 3084.818181
If we subtract 77 from 140, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 13:
The number 77 fits into 630 8 times, leaving a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 3084.8181818
Subtracting 616 from 630 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 14:
The number 77 fits into 140 1 times, leaving a remainder of 63.
The next digit of our result is 1. 
Result so far: 3084.81818181
If we subtract 77 from 140, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

The final outcome is 3084.81818181, with a leftover of 6.3e-08.