Let's divide 85239290 by 429
The aim is to understand the frequency of 429 in 85239290.

Step 1:
8 divided by 429 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 429

Step 2:
429 goes into 85 0 times with a remainder of 85.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Take the next digit (2) from the dividend and append it to 85, then repeat: 852 / 429

Advancing to step 3:
The number 429 fits into 852 1 times, leaving a remainder of 423.
The next digit of our result is 1. 
Result so far: 1.0
If we take 429 away from 852, we end up with 423.
Include the next digit (3) from the dividend after 423, then repeat: 4233 / 429

Advancing to step 4:
When dividing 4233 by 429, we get 9 with a remainder of 372.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
If we subtract 3861 from 4233, we get 372.
Append the next digit (9) from the dividend to 372 and continue with: 3729 / 429

Advancing to step 5:
The number 429 fits into 3729 8 times, leaving a remainder of 297.
Write down 8 as next digit of the result. 
Result so far: 198.0
If we subtract 3432 from 3729, we get 297.
Take the next digit (2) from the dividend and append it to 297, then repeat: 2972 / 429

Moving on to step 6:
429 goes into 2972 6 times with a remainder of 398.
Write down 6 as next digit of the result. 
Result so far: 1986.0
Subtract 2574 from 2972 to get 398.
Fetch the next digit (9) from the dividend, attach it to 398 and continue: 3989 / 429

Advancing to step 7:
When dividing 3989 by 429, we get 9 with a remainder of 128.
Use 9 as the next digit of our solution. 
Result so far: 19869.0
If we subtract 3861 from 3989, we get 128.
Take the next digit (0) from the dividend and append it to 128, then repeat: 1280 / 429

Going ahead to step 8:
429 goes into 1280 2 times with a remainder of 422.
Put 2 as the next digit of the answer. 
Result so far: 198692.0
Deduct 858 from 1280 and we're left with 422.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

Moving on to step 9:
When dividing 4220 by 429, we get 9 with a remainder of 359.
The next digit of our result is 9. 
Result so far: 198692.9
If we subtract 3861 from 4220, we get 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Step 10:
429 can be fit into 3590 8 times, resulting in a remainder of 158.
The number 8 becomes the next digit in our result. 
Result so far: 198692.98
Subtracting 3432 from 3590 leaves us with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

On to step 11:
The number 429 fits into 1580 3 times, leaving a remainder of 293.
Put 3 as the next digit of the answer. 
Result so far: 198692.983
The remainder is 293 after subtracting 1287 from 1580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

Advancing to step 12:
The number 429 fits into 2930 6 times, leaving a remainder of 356.
Put 6 as the next digit of the answer. 
Result so far: 198692.9836
If we subtract 2574 from 2930, we get 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Advancing to step 13:
429 can be fit into 3560 8 times, resulting in a remainder of 128.
Put 8 as the next digit of the answer. 
Result so far: 198692.98368
Deduct 3432 from 3560 and we're left with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Moving on to step 14:
429 can be fit into 1280 2 times, resulting in a remainder of 422.
The next digit of our result is 2. 
Result so far: 198692.983682
Deduct 858 from 1280 and we're left with 422.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

Moving on to step 15:
429 goes into 4220 9 times with a remainder of 359.
The next digit of our result is 9. 
Result so far: 198692.9836829
Subtracting 3861 from 4220 leaves us with 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Step 16:
3590 divided by 429 is 8 with a remainder of 158.
The number 8 becomes the next digit in our result. 
Result so far: 198692.98368298
If we subtract 3432 from 3590, we get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

After the division, we end up with 198692.98368298 and a remainder of 1.58e-07.