We divide 90825520 by 602
The aim is to understand the frequency of 602 in 90825520.

On to step 1:
602 goes into 9 0 times with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 602

Moving on to step 2:
If we divide 90 by 602, we get 0 and a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Grab the next digit (8) from the dividend, add it to 90, then carry on: 908 / 602

Going ahead to step 3:
When dividing 908 by 602, we get 1 with a remainder of 306.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 602 from 908 to get 306.
Include the next digit (2) from the dividend after 306, then repeat: 3062 / 602

Going ahead to step 4:
The number 602 fits into 3062 5 times, leaving a remainder of 52.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we subtract 3010 from 3062, we get 52.
Bring next digit (5) of the dividend behind the 52 and repeat the process: 525 / 602

On to step 5:
The number 602 fits into 525 0 times, leaving a remainder of 525.
Record the quotient 0 as the next digit in the result. 
Result so far: 150.0
Deduct 0 from 525 and we're left with 525.
Include the next digit (5) from the dividend after 525, then repeat: 5255 / 602

Going ahead to step 6:
602 can be fit into 5255 8 times, resulting in a remainder of 439.
Use 8 as the next digit of our solution. 
Result so far: 1508.0
If we subtract 4816 from 5255, we get 439.
Take the next digit (2) from the dividend and append it to 439, then repeat: 4392 / 602

Advancing to step 7:
602 goes into 4392 7 times with a remainder of 178.
Write down 7 as next digit of the result. 
Result so far: 15087.0
The remainder is 178 after subtracting 4214 from 4392.
Include the next digit (0) from the dividend after 178, then repeat: 1780 / 602

Moving on to step 8:
When dividing 1780 by 602, we get 2 with a remainder of 576.
Write down 2 as next digit of the result. 
Result so far: 150872.0
Subtracting 1204 from 1780 leaves us with 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Let's proceed to step 9:
602 goes into 5760 9 times with a remainder of 342.
The number 9 becomes the next digit in our result. 
Result so far: 150872.9
Deduct 5418 from 5760 and we're left with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Moving on to step 10:
When dividing 3420 by 602, we get 5 with a remainder of 410.
The number 5 becomes the next digit in our result. 
Result so far: 150872.95
If we take 3010 away from 3420, we end up with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Going ahead to step 11:
4100 divided by 602 is 6 with a remainder of 488.
Use 6 as the next digit of our solution. 
Result so far: 150872.956
The remainder is 488 after subtracting 3612 from 4100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Let's proceed to step 12:
602 can be fit into 4880 8 times, resulting in a remainder of 64.
Use 8 as the next digit of our solution. 
Result so far: 150872.9568
Deduct 4816 from 4880 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 13:
If we divide 640 by 602, we get 1 and a remainder of 38.
Put 1 as the next digit of the answer. 
Result so far: 150872.95681
If we take 602 away from 640, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 14:
380 divided by 602 is 0 with a remainder of 380.
Record the quotient 0 as the next digit in the result. 
Result so far: 150872.95681
If we subtract 0 from 380, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Step 15:
3800 divided by 602 is 6 with a remainder of 188.
The number 6 becomes the next digit in our result. 
Result so far: 150872.9568106
If we take 3612 away from 3800, we end up with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

On to step 16:
When dividing 1880 by 602, we get 3 with a remainder of 74.
Use 3 as the next digit of our solution. 
Result so far: 150872.95681063
The remainder is 74 after subtracting 1806 from 1880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

The final outcome is 150872.95681063, with a leftover of 7.4e-08.