We divide 77688235 by 581
The aim is to understand the frequency of 581 in 77688235.

On to step 1:
If we divide 7 by 581, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 581

On to step 2:
581 can be fit into 77 0 times, resulting in a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Fetch the next digit (6) from the dividend, attach it to 77 and continue: 776 / 581

Advancing to step 3:
The number 581 fits into 776 1 times, leaving a remainder of 195.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 581 from 776, we get 195.
Grab the next digit (8) from the dividend, add it to 195, then carry on: 1958 / 581

Advancing to step 4:
When dividing 1958 by 581, we get 3 with a remainder of 215.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we subtract 1743 from 1958, we get 215.
Take the next digit (8) from the dividend and append it to 215, then repeat: 2158 / 581

Let's proceed to step 5:
If we divide 2158 by 581, we get 3 and a remainder of 415.
The next digit of our result is 3. 
Result so far: 133.0
Deduct 1743 from 2158 and we're left with 415.
Grab the next digit (2) from the dividend, add it to 415, then carry on: 4152 / 581

On to step 6:
If we divide 4152 by 581, we get 7 and a remainder of 85.
The next digit of our result is 7. 
Result so far: 1337.0
Subtracting 4067 from 4152 leaves us with 85.
Take the next digit (3) from the dividend and append it to 85, then repeat: 853 / 581

On to step 7:
581 can be fit into 853 1 times, resulting in a remainder of 272.
Use 1 as the next digit of our solution. 
Result so far: 13371.0
Subtracting 581 from 853 leaves us with 272.
Include the next digit (5) from the dividend after 272, then repeat: 2725 / 581

Moving on to step 8:
2725 divided by 581 is 4 with a remainder of 401.
Write down 4 as next digit of the result. 
Result so far: 133714.0
Deduct 2324 from 2725 and we're left with 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Going ahead to step 9:
581 goes into 4010 6 times with a remainder of 524.
The number 6 becomes the next digit in our result. 
Result so far: 133714.6
Subtract 3486 from 4010 to get 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

On to step 10:
581 goes into 5240 9 times with a remainder of 11.
The next digit of our result is 9. 
Result so far: 133714.69
Subtracting 5229 from 5240 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 11:
581 can be fit into 110 0 times, resulting in a remainder of 110.
Put 0 as the next digit of the answer. 
Result so far: 133714.69
Subtracting 0 from 110 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Let's proceed to step 12:
1100 divided by 581 is 1 with a remainder of 519.
The next digit of our result is 1. 
Result so far: 133714.6901
If we take 581 away from 1100, we end up with 519.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5190, and continue the process.

Advancing to step 13:
581 can be fit into 5190 8 times, resulting in a remainder of 542.
Use 8 as the next digit of our solution. 
Result so far: 133714.69018
If we take 4648 away from 5190, we end up with 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

On to step 14:
If we divide 5420 by 581, we get 9 and a remainder of 191.
The next digit of our result is 9. 
Result so far: 133714.690189
Subtracting 5229 from 5420 leaves us with 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

On to step 15:
581 goes into 1910 3 times with a remainder of 167.
The number 3 becomes the next digit in our result. 
Result so far: 133714.6901893
The remainder is 167 after subtracting 1743 from 1910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

Let's proceed to step 16:
581 can be fit into 1670 2 times, resulting in a remainder of 508.
Use 2 as the next digit of our solution. 
Result so far: 133714.69018932
Subtracting 1162 from 1670 leaves us with 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

The final outcome is 133714.69018932, with a leftover of 5.08e-07.