35516401 ÷ 513 
The aim is to understand the frequency of 513 in 35516401.

On to step 1:
The number 513 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 513

On to step 2:
35 divided by 513 is 0 with a remainder of 35.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 35 and we're left with 35.
Append the next digit (5) from the dividend to 35 and continue with: 355 / 513

Going ahead to step 3:
If we divide 355 by 513, we get 0 and a remainder of 355.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 355 leaves us with 355.
Take the next digit (1) from the dividend and append it to 355, then repeat: 3551 / 513

Going ahead to step 4:
513 can be fit into 3551 6 times, resulting in a remainder of 473.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we take 3078 away from 3551, we end up with 473.
Take the next digit (6) from the dividend and append it to 473, then repeat: 4736 / 513

On to step 5:
When dividing 4736 by 513, we get 9 with a remainder of 119.
Write down 9 as next digit of the result. 
Result so far: 69.0
Subtract 4617 from 4736 to get 119.
Take the next digit (4) from the dividend and append it to 119, then repeat: 1194 / 513

Going ahead to step 6:
When dividing 1194 by 513, we get 2 with a remainder of 168.
Write down 2 as next digit of the result. 
Result so far: 692.0
The remainder is 168 after subtracting 1026 from 1194.
Append the next digit (0) from the dividend to 168 and continue with: 1680 / 513

Step 7:
513 can be fit into 1680 3 times, resulting in a remainder of 141.
Use 3 as the next digit of our solution. 
Result so far: 6923.0
If we take 1539 away from 1680, we end up with 141.
Grab the next digit (1) from the dividend, add it to 141, then carry on: 1411 / 513

Going ahead to step 8:
513 goes into 1411 2 times with a remainder of 385.
Write down 2 as next digit of the result. 
Result so far: 69232.0
Subtract 1026 from 1411 to get 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Moving on to step 9:
513 goes into 3850 7 times with a remainder of 259.
The next digit of our result is 7. 
Result so far: 69232.7
If we subtract 3591 from 3850, we get 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Going ahead to step 10:
513 goes into 2590 5 times with a remainder of 25.
The next digit of our result is 5. 
Result so far: 69232.75
If we subtract 2565 from 2590, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 11:
513 can be fit into 250 0 times, resulting in a remainder of 250.
The next digit of our result is 0. 
Result so far: 69232.75
Subtract 0 from 250 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Let's proceed to step 12:
513 can be fit into 2500 4 times, resulting in a remainder of 448.
Write down 4 as next digit of the result. 
Result so far: 69232.7504
Deduct 2052 from 2500 and we're left with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Step 13:
513 can be fit into 4480 8 times, resulting in a remainder of 376.
Write down 8 as next digit of the result. 
Result so far: 69232.75048
Subtracting 4104 from 4480 leaves us with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Moving on to step 14:
The number 513 fits into 3760 7 times, leaving a remainder of 169.
Write down 7 as next digit of the result. 
Result so far: 69232.750487
Subtracting 3591 from 3760 leaves us with 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Advancing to step 15:
513 can be fit into 1690 3 times, resulting in a remainder of 151.
Use 3 as the next digit of our solution. 
Result so far: 69232.7504873
Subtracting 1539 from 1690 leaves us with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Step 16:
The number 513 fits into 1510 2 times, leaving a remainder of 484.
The next digit of our result is 2. 
Result so far: 69232.75048732
If we subtract 1026 from 1510, we get 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

After the division, we end up with 69232.75048732 and a remainder of 4.84e-07.