Let's divide 75723999 by 891
The aim is to understand the frequency of 891 in 75723999.

Let's proceed to step 1:
891 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 891

Advancing to step 2:
If we divide 75 by 891, we get 0 and a remainder of 75.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 75 leaves us with 75.
Take the next digit (7) from the dividend and append it to 75, then repeat: 757 / 891

Step 3:
The number 891 fits into 757 0 times, leaving a remainder of 757.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 757 leaves us with 757.
Grab the next digit (2) from the dividend, add it to 757, then carry on: 7572 / 891

Going ahead to step 4:
The number 891 fits into 7572 8 times, leaving a remainder of 444.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 444 after subtracting 7128 from 7572.
Include the next digit (3) from the dividend after 444, then repeat: 4443 / 891

Going ahead to step 5:
891 goes into 4443 4 times with a remainder of 879.
Put 4 as the next digit of the answer. 
Result so far: 84.0
The remainder is 879 after subtracting 3564 from 4443.
Take the next digit (9) from the dividend and append it to 879, then repeat: 8799 / 891

Moving on to step 6:
If we divide 8799 by 891, we get 9 and a remainder of 780.
Record the quotient 9 as the next digit in the result. 
Result so far: 849.0
Subtracting 8019 from 8799 leaves us with 780.
Grab the next digit (9) from the dividend, add it to 780, then carry on: 7809 / 891

Going ahead to step 7:
When dividing 7809 by 891, we get 8 with a remainder of 681.
The number 8 becomes the next digit in our result. 
Result so far: 8498.0
The remainder is 681 after subtracting 7128 from 7809.
Grab the next digit (9) from the dividend, add it to 681, then carry on: 6819 / 891

Let's proceed to step 8:
When dividing 6819 by 891, we get 7 with a remainder of 582.
Use 7 as the next digit of our solution. 
Result so far: 84987.0
Subtract 6237 from 6819 to get 582.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Let's proceed to step 9:
The number 891 fits into 5820 6 times, leaving a remainder of 474.
Put 6 as the next digit of the answer. 
Result so far: 84987.6
The remainder is 474 after subtracting 5346 from 5820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Let's proceed to step 10:
When dividing 4740 by 891, we get 5 with a remainder of 285.
Use 5 as the next digit of our solution. 
Result so far: 84987.65
Deduct 4455 from 4740 and we're left with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Step 11:
891 goes into 2850 3 times with a remainder of 177.
The next digit of our result is 3. 
Result so far: 84987.653
Deduct 2673 from 2850 and we're left with 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Advancing to step 12:
891 can be fit into 1770 1 times, resulting in a remainder of 879.
The next digit of our result is 1. 
Result so far: 84987.6531
If we take 891 away from 1770, we end up with 879.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8790, and continue the process.

Advancing to step 13:
891 goes into 8790 9 times with a remainder of 771.
The number 9 becomes the next digit in our result. 
Result so far: 84987.65319
Deduct 8019 from 8790 and we're left with 771.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7710, and continue the process.

Step 14:
The number 891 fits into 7710 8 times, leaving a remainder of 582.
Write down 8 as next digit of the result. 
Result so far: 84987.653198
The remainder is 582 after subtracting 7128 from 7710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

On to step 15:
891 can be fit into 5820 6 times, resulting in a remainder of 474.
Use 6 as the next digit of our solution. 
Result so far: 84987.6531986
The remainder is 474 after subtracting 5346 from 5820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Advancing to step 16:
When dividing 4740 by 891, we get 5 with a remainder of 285.
Write down 5 as next digit of the result. 
Result so far: 84987.65319865
The remainder is 285 after subtracting 4455 from 4740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

The final outcome is 84987.65319865, with a leftover of 2.85e-07.