Let's divide 81690373 by 972
The aim is to understand the frequency of 972 in 81690373.

Step 1:
The number 972 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 972

Step 2:
972 can be fit into 81 0 times, resulting in a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Take the next digit (6) from the dividend and append it to 81, then repeat: 816 / 972

Step 3:
If we divide 816 by 972, we get 0 and a remainder of 816.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 816, we get 816.
Grab the next digit (9) from the dividend, add it to 816, then carry on: 8169 / 972

Advancing to step 4:
972 goes into 8169 8 times with a remainder of 393.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtracting 7776 from 8169 leaves us with 393.
Fetch the next digit (0) from the dividend, attach it to 393 and continue: 3930 / 972

Moving on to step 5:
972 can be fit into 3930 4 times, resulting in a remainder of 42.
The next digit of our result is 4. 
Result so far: 84.0
If we subtract 3888 from 3930, we get 42.
Include the next digit (3) from the dividend after 42, then repeat: 423 / 972

Going ahead to step 6:
When dividing 423 by 972, we get 0 with a remainder of 423.
The next digit of our result is 0. 
Result so far: 840.0
If we take 0 away from 423, we end up with 423.
Take the next digit (7) from the dividend and append it to 423, then repeat: 4237 / 972

Moving on to step 7:
972 can be fit into 4237 4 times, resulting in a remainder of 349.
Put 4 as the next digit of the answer. 
Result so far: 8404.0
Deduct 3888 from 4237 and we're left with 349.
Bring next digit (3) of the dividend behind the 349 and repeat the process: 3493 / 972

Moving on to step 8:
When dividing 3493 by 972, we get 3 with a remainder of 577.
Put 3 as the next digit of the answer. 
Result so far: 84043.0
Subtracting 2916 from 3493 leaves us with 577.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5770, and continue the process.

Let's proceed to step 9:
If we divide 5770 by 972, we get 5 and a remainder of 910.
Write down 5 as next digit of the result. 
Result so far: 84043.5
The remainder is 910 after subtracting 4860 from 5770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9100, and continue the process.

Moving on to step 10:
If we divide 9100 by 972, we get 9 and a remainder of 352.
Write down 9 as next digit of the result. 
Result so far: 84043.59
If we take 8748 away from 9100, we end up with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Advancing to step 11:
972 goes into 3520 3 times with a remainder of 604.
Use 3 as the next digit of our solution. 
Result so far: 84043.593
If we take 2916 away from 3520, we end up with 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

Advancing to step 12:
972 goes into 6040 6 times with a remainder of 208.
Write down 6 as next digit of the result. 
Result so far: 84043.5936
Deduct 5832 from 6040 and we're left with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Moving on to step 13:
If we divide 2080 by 972, we get 2 and a remainder of 136.
The number 2 becomes the next digit in our result. 
Result so far: 84043.59362
If we subtract 1944 from 2080, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Let's proceed to step 14:
When dividing 1360 by 972, we get 1 with a remainder of 388.
Use 1 as the next digit of our solution. 
Result so far: 84043.593621
Subtract 972 from 1360 to get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Let's proceed to step 15:
If we divide 3880 by 972, we get 3 and a remainder of 964.
Put 3 as the next digit of the answer. 
Result so far: 84043.5936213
If we subtract 2916 from 3880, we get 964.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9640, and continue the process.

Moving on to step 16:
When dividing 9640 by 972, we get 9 with a remainder of 892.
The next digit of our result is 9. 
Result so far: 84043.59362139
Subtract 8748 from 9640 to get 892.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8920, and continue the process.

In conclusion, the division gives 84043.59362139 with a balance of 8.92e-07.