2253363 ÷ 640 
The aim is to understand the frequency of 640 in 2253363.

Moving on to step 1:
640 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 640

On to step 2:
640 goes into 22 0 times with a remainder of 22.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 22, we get 22.
Append the next digit (5) from the dividend to 22 and continue with: 225 / 640

On to step 3:
The number 640 fits into 225 0 times, leaving a remainder of 225.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 225 leaves us with 225.
Include the next digit (3) from the dividend after 225, then repeat: 2253 / 640

Going ahead to step 4:
When dividing 2253 by 640, we get 3 with a remainder of 333.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 1920 from 2253 to get 333.
Grab the next digit (3) from the dividend, add it to 333, then carry on: 3333 / 640

Moving on to step 5:
640 goes into 3333 5 times with a remainder of 133.
Record the quotient 5 as the next digit in the result. 
Result so far: 35.0
The remainder is 133 after subtracting 3200 from 3333.
Fetch the next digit (6) from the dividend, attach it to 133 and continue: 1336 / 640

On to step 6:
640 goes into 1336 2 times with a remainder of 56.
The number 2 becomes the next digit in our result. 
Result so far: 352.0
If we subtract 1280 from 1336, we get 56.
Take the next digit (3) from the dividend and append it to 56, then repeat: 563 / 640

Going ahead to step 7:
640 can be fit into 563 0 times, resulting in a remainder of 563.
Use 0 as the next digit of our solution. 
Result so far: 3520.0
Subtracting 0 from 563 leaves us with 563.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5630, and continue the process.

Moving on to step 8:
640 can be fit into 5630 8 times, resulting in a remainder of 510.
The number 8 becomes the next digit in our result. 
Result so far: 3520.8
If we take 5120 away from 5630, we end up with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Moving on to step 9:
640 goes into 5100 7 times with a remainder of 620.
Record the quotient 7 as the next digit in the result. 
Result so far: 3520.87
The remainder is 620 after subtracting 4480 from 5100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Moving on to step 10:
If we divide 6200 by 640, we get 9 and a remainder of 440.
The next digit of our result is 9. 
Result so far: 3520.879
Subtract 5760 from 6200 to get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

On to step 11:
4400 divided by 640 is 6 with a remainder of 560.
The number 6 becomes the next digit in our result. 
Result so far: 3520.8796
The remainder is 560 after subtracting 3840 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

On to step 12:
When dividing 5600 by 640, we get 8 with a remainder of 480.
The next digit of our result is 8. 
Result so far: 3520.87968
The remainder is 480 after subtracting 5120 from 5600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 13:
If we divide 4800 by 640, we get 7 and a remainder of 320.
Use 7 as the next digit of our solution. 
Result so far: 3520.879687
Subtracting 4480 from 4800 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 14:
When dividing 3200 by 640, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 3520.8796875
The remainder is 0 after subtracting 3200 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 15:
0 divided by 640 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 3520.8796875
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 3520.8796875, and the remainder is 0.0.