90209877 ÷ 593 
The aim is to understand the frequency of 593 in 90209877.

Moving on to step 1:
593 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 593

Advancing to step 2:
593 goes into 90 0 times with a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Take the next digit (2) from the dividend and append it to 90, then repeat: 902 / 593

On to step 3:
593 goes into 902 1 times with a remainder of 309.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 309 after subtracting 593 from 902.
Take the next digit (0) from the dividend and append it to 309, then repeat: 3090 / 593

Step 4:
593 can be fit into 3090 5 times, resulting in a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Deduct 2965 from 3090 and we're left with 125.
Fetch the next digit (9) from the dividend, attach it to 125 and continue: 1259 / 593

Advancing to step 5:
When dividing 1259 by 593, we get 2 with a remainder of 73.
The next digit of our result is 2. 
Result so far: 152.0
If we take 1186 away from 1259, we end up with 73.
Grab the next digit (8) from the dividend, add it to 73, then carry on: 738 / 593

Going ahead to step 6:
If we divide 738 by 593, we get 1 and a remainder of 145.
Use 1 as the next digit of our solution. 
Result so far: 1521.0
If we subtract 593 from 738, we get 145.
Fetch the next digit (7) from the dividend, attach it to 145 and continue: 1457 / 593

On to step 7:
1457 divided by 593 is 2 with a remainder of 271.
The next digit of our result is 2. 
Result so far: 15212.0
Deduct 1186 from 1457 and we're left with 271.
Fetch the next digit (7) from the dividend, attach it to 271 and continue: 2717 / 593

Step 8:
593 can be fit into 2717 4 times, resulting in a remainder of 345.
Write down 4 as next digit of the result. 
Result so far: 152124.0
Deduct 2372 from 2717 and we're left with 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Step 9:
593 can be fit into 3450 5 times, resulting in a remainder of 485.
The number 5 becomes the next digit in our result. 
Result so far: 152124.5
Subtract 2965 from 3450 to get 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

Advancing to step 10:
4850 divided by 593 is 8 with a remainder of 106.
Write down 8 as next digit of the result. 
Result so far: 152124.58
Subtract 4744 from 4850 to get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Advancing to step 11:
When dividing 1060 by 593, we get 1 with a remainder of 467.
Write down 1 as next digit of the result. 
Result so far: 152124.581
If we take 593 away from 1060, we end up with 467.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4670, and continue the process.

Advancing to step 12:
The number 593 fits into 4670 7 times, leaving a remainder of 519.
Record the quotient 7 as the next digit in the result. 
Result so far: 152124.5817
If we take 4151 away from 4670, 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.

Going ahead to step 13:
5190 divided by 593 is 8 with a remainder of 446.
Use 8 as the next digit of our solution. 
Result so far: 152124.58178
The remainder is 446 after subtracting 4744 from 5190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Moving on to step 14:
If we divide 4460 by 593, we get 7 and a remainder of 309.
Record the quotient 7 as the next digit in the result. 
Result so far: 152124.581787
If we take 4151 away from 4460, we end up with 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

On to step 15:
The number 593 fits into 3090 5 times, leaving a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 152124.5817875
The remainder is 125 after subtracting 2965 from 3090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Let's proceed to step 16:
593 can be fit into 1250 2 times, resulting in a remainder of 64.
Record the quotient 2 as the next digit in the result. 
Result so far: 152124.58178752
Subtract 1186 from 1250 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final outcome is 152124.58178752, with a leftover of 6.4e-08.