We look at the division of 74129563 by 690 
The aim is to understand the frequency of 690 in 74129563.

Advancing to step 1:
7 divided by 690 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 690

On to step 2:
74 divided by 690 is 0 with a remainder of 74.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 74 after subtracting 0 from 74.
Append the next digit (1) from the dividend to 74 and continue with: 741 / 690

On to step 3:
690 goes into 741 1 times with a remainder of 51.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 51 after subtracting 690 from 741.
Grab the next digit (2) from the dividend, add it to 51, then carry on: 512 / 690

Going ahead to step 4:
The number 690 fits into 512 0 times, leaving a remainder of 512.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 512, we end up with 512.
Bring next digit (9) of the dividend behind the 512 and repeat the process: 5129 / 690

Going ahead to step 5:
If we divide 5129 by 690, we get 7 and a remainder of 299.
Record the quotient 7 as the next digit in the result. 
Result so far: 107.0
If we take 4830 away from 5129, we end up with 299.
Fetch the next digit (5) from the dividend, attach it to 299 and continue: 2995 / 690

Going ahead to step 6:
When dividing 2995 by 690, we get 4 with a remainder of 235.
Use 4 as the next digit of our solution. 
Result so far: 1074.0
If we take 2760 away from 2995, we end up with 235.
Grab the next digit (6) from the dividend, add it to 235, then carry on: 2356 / 690

Let's proceed to step 7:
690 can be fit into 2356 3 times, resulting in a remainder of 286.
The number 3 becomes the next digit in our result. 
Result so far: 10743.0
The remainder is 286 after subtracting 2070 from 2356.
Bring next digit (3) of the dividend behind the 286 and repeat the process: 2863 / 690

Advancing to step 8:
The number 690 fits into 2863 4 times, leaving a remainder of 103.
The next digit of our result is 4. 
Result so far: 107434.0
Deduct 2760 from 2863 and we're left with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Moving on to step 9:
The number 690 fits into 1030 1 times, leaving a remainder of 340.
The next digit of our result is 1. 
Result so far: 107434.1
If we take 690 away from 1030, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Let's proceed to step 10:
690 can be fit into 3400 4 times, resulting in a remainder of 640.
Record the quotient 4 as the next digit in the result. 
Result so far: 107434.14
Subtracting 2760 from 3400 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Moving on to step 11:
690 can be fit into 6400 9 times, resulting in a remainder of 190.
The next digit of our result is 9. 
Result so far: 107434.149
If we subtract 6210 from 6400, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 12:
The number 690 fits into 1900 2 times, leaving a remainder of 520.
Put 2 as the next digit of the answer. 
Result so far: 107434.1492
Subtract 1380 from 1900 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Advancing to step 13:
The number 690 fits into 5200 7 times, leaving a remainder of 370.
Use 7 as the next digit of our solution. 
Result so far: 107434.14927
Deduct 4830 from 5200 and we're left with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Let's proceed to step 14:
If we divide 3700 by 690, we get 5 and a remainder of 250.
The next digit of our result is 5. 
Result so far: 107434.149275
Deduct 3450 from 3700 and we're left with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Step 15:
If we divide 2500 by 690, we get 3 and a remainder of 430.
Put 3 as the next digit of the answer. 
Result so far: 107434.1492753
The remainder is 430 after subtracting 2070 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

On to step 16:
4300 divided by 690 is 6 with a remainder of 160.
Use 6 as the next digit of our solution. 
Result so far: 107434.14927536
Subtracting 4140 from 4300 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

After the division, we end up with 107434.14927536 and a remainder of 1.6e-07.