We look at the division of 35699451 by 654 
The aim is to understand the frequency of 654 in 35699451.

On to step 1:
654 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 654

Moving on to step 2:
If we divide 35 by 654, we get 0 and a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 35, we get 35.
Grab the next digit (6) from the dividend, add it to 35, then carry on: 356 / 654

Advancing to step 3:
If we divide 356 by 654, we get 0 and a remainder of 356.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 356, we get 356.
Grab the next digit (9) from the dividend, add it to 356, then carry on: 3569 / 654

Advancing to step 4:
654 goes into 3569 5 times with a remainder of 299.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 3270 away from 3569, we end up with 299.
Bring next digit (9) of the dividend behind the 299 and repeat the process: 2999 / 654

Let's proceed to step 5:
2999 divided by 654 is 4 with a remainder of 383.
Put 4 as the next digit of the answer. 
Result so far: 54.0
If we take 2616 away from 2999, we end up with 383.
Include the next digit (4) from the dividend after 383, then repeat: 3834 / 654

Moving on to step 6:
654 can be fit into 3834 5 times, resulting in a remainder of 564.
Record the quotient 5 as the next digit in the result. 
Result so far: 545.0
If we take 3270 away from 3834, we end up with 564.
Include the next digit (5) from the dividend after 564, then repeat: 5645 / 654

Moving on to step 7:
5645 divided by 654 is 8 with a remainder of 413.
The next digit of our result is 8. 
Result so far: 5458.0
If we take 5232 away from 5645, we end up with 413.
Bring next digit (1) of the dividend behind the 413 and repeat the process: 4131 / 654

Advancing to step 8:
654 goes into 4131 6 times with a remainder of 207.
Put 6 as the next digit of the answer. 
Result so far: 54586.0
If we subtract 3924 from 4131, we get 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Advancing to step 9:
2070 divided by 654 is 3 with a remainder of 108.
Record the quotient 3 as the next digit in the result. 
Result so far: 54586.3
Deduct 1962 from 2070 and we're left with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

On to step 10:
The number 654 fits into 1080 1 times, leaving a remainder of 426.
Put 1 as the next digit of the answer. 
Result so far: 54586.31
Subtracting 654 from 1080 leaves us with 426.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4260, and continue the process.

Going ahead to step 11:
The number 654 fits into 4260 6 times, leaving a remainder of 336.
Record the quotient 6 as the next digit in the result. 
Result so far: 54586.316
Deduct 3924 from 4260 and we're left with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

On to step 12:
If we divide 3360 by 654, we get 5 and a remainder of 90.
The number 5 becomes the next digit in our result. 
Result so far: 54586.3165
If we subtract 3270 from 3360, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Going ahead to step 13:
654 can be fit into 900 1 times, resulting in a remainder of 246.
Record the quotient 1 as the next digit in the result. 
Result so far: 54586.31651
The remainder is 246 after subtracting 654 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

On to step 14:
If we divide 2460 by 654, we get 3 and a remainder of 498.
Use 3 as the next digit of our solution. 
Result so far: 54586.316513
If we take 1962 away from 2460, we end up with 498.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

On to step 15:
When dividing 4980 by 654, we get 7 with a remainder of 402.
Use 7 as the next digit of our solution. 
Result so far: 54586.3165137
If we subtract 4578 from 4980, we get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Advancing to step 16:
When dividing 4020 by 654, we get 6 with a remainder of 96.
Put 6 as the next digit of the answer. 
Result so far: 54586.31651376
Deduct 3924 from 4020 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

The quotient of the division is 54586.31651376, and the remainder is 9.6e-08.