We divide 90231001 by 507
The aim is to understand the frequency of 507 in 90231001.

Moving on to step 1:
When dividing 9 by 507, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 507

On to step 2:
When dividing 90 by 507, we get 0 with a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 90 to get 90.
Grab the next digit (2) from the dividend, add it to 90, then carry on: 902 / 507

On to step 3:
507 goes into 902 1 times with a remainder of 395.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 507 from 902 leaves us with 395.
Take the next digit (3) from the dividend and append it to 395, then repeat: 3953 / 507

Let's proceed to step 4:
When dividing 3953 by 507, we get 7 with a remainder of 404.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
If we take 3549 away from 3953, we end up with 404.
Fetch the next digit (1) from the dividend, attach it to 404 and continue: 4041 / 507

On to step 5:
4041 divided by 507 is 7 with a remainder of 492.
Put 7 as the next digit of the answer. 
Result so far: 177.0
If we take 3549 away from 4041, we end up with 492.
Take the next digit (0) from the dividend and append it to 492, then repeat: 4920 / 507

On to step 6:
507 can be fit into 4920 9 times, resulting in a remainder of 357.
The number 9 becomes the next digit in our result. 
Result so far: 1779.0
Subtract 4563 from 4920 to get 357.
Fetch the next digit (0) from the dividend, attach it to 357 and continue: 3570 / 507

On to step 7:
When dividing 3570 by 507, we get 7 with a remainder of 21.
The next digit of our result is 7. 
Result so far: 17797.0
Subtracting 3549 from 3570 leaves us with 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 507

Advancing to step 8:
If we divide 211 by 507, we get 0 and a remainder of 211.
The number 0 becomes the next digit in our result. 
Result so far: 177970.0
If we take 0 away from 211, we end up with 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Advancing to step 9:
507 can be fit into 2110 4 times, resulting in a remainder of 82.
The number 4 becomes the next digit in our result. 
Result so far: 177970.4
The remainder is 82 after subtracting 2028 from 2110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Going ahead to step 10:
507 goes into 820 1 times with a remainder of 313.
Record the quotient 1 as the next digit in the result. 
Result so far: 177970.41
Subtracting 507 from 820 leaves us with 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Advancing to step 11:
3130 divided by 507 is 6 with a remainder of 88.
Put 6 as the next digit of the answer. 
Result so far: 177970.416
If we take 3042 away from 3130, we end up with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Going ahead to step 12:
The number 507 fits into 880 1 times, leaving a remainder of 373.
Write down 1 as next digit of the result. 
Result so far: 177970.4161
The remainder is 373 after subtracting 507 from 880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

Let's proceed to step 13:
3730 divided by 507 is 7 with a remainder of 181.
Put 7 as the next digit of the answer. 
Result so far: 177970.41617
If we take 3549 away from 3730, we end up with 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

On to step 14:
507 goes into 1810 3 times with a remainder of 289.
Use 3 as the next digit of our solution. 
Result so far: 177970.416173
Deduct 1521 from 1810 and we're left with 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

Let's proceed to step 15:
If we divide 2890 by 507, we get 5 and a remainder of 355.
The number 5 becomes the next digit in our result. 
Result so far: 177970.4161735
If we subtract 2535 from 2890, we get 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

On to step 16:
507 goes into 3550 7 times with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 177970.41617357
If we take 3549 away from 3550, we end up 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.

After the division, we end up with 177970.41617357 and a remainder of 1e-09.