We look at the division of 18435372 by 640 
We want to figure out the number of times 18435372 can be divided by 640.

Moving on to step 1:
If we divide 1 by 640, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 640

Moving on to step 2:
The number 640 fits into 18 0 times, leaving a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Fetch the next digit (4) from the dividend, attach it to 18 and continue: 184 / 640

Going ahead to step 3:
If we divide 184 by 640, we get 0 and a remainder of 184.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 184 to get 184.
Fetch the next digit (3) from the dividend, attach it to 184 and continue: 1843 / 640

Let's proceed to step 4:
If we divide 1843 by 640, we get 2 and a remainder of 563.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 1280 from 1843 to get 563.
Bring next digit (5) of the dividend behind the 563 and repeat the process: 5635 / 640

Going ahead to step 5:
When dividing 5635 by 640, we get 8 with a remainder of 515.
Write down 8 as next digit of the result. 
Result so far: 28.0
The remainder is 515 after subtracting 5120 from 5635.
Fetch the next digit (3) from the dividend, attach it to 515 and continue: 5153 / 640

Advancing to step 6:
5153 divided by 640 is 8 with a remainder of 33.
Use 8 as the next digit of our solution. 
Result so far: 288.0
If we subtract 5120 from 5153, we get 33.
Bring next digit (7) of the dividend behind the 33 and repeat the process: 337 / 640

Step 7:
640 goes into 337 0 times with a remainder of 337.
The number 0 becomes the next digit in our result. 
Result so far: 2880.0
Deduct 0 from 337 and we're left with 337.
Take the next digit (2) from the dividend and append it to 337, then repeat: 3372 / 640

Moving on to step 8:
The number 640 fits into 3372 5 times, leaving a remainder of 172.
The next digit of our result is 5. 
Result so far: 28805.0
Deduct 3200 from 3372 and we're left with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Step 9:
1720 divided by 640 is 2 with a remainder of 440.
Use 2 as the next digit of our solution. 
Result so far: 28805.2
If we subtract 1280 from 1720, we 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.

Moving on to step 10:
4400 divided by 640 is 6 with a remainder of 560.
Write down 6 as next digit of the result. 
Result so far: 28805.26
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.

Advancing to step 11:
640 can be fit into 5600 8 times, resulting in a remainder of 480.
Use 8 as the next digit of our solution. 
Result so far: 28805.268
Deduct 5120 from 5600 and we're left with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 12:
640 goes into 4800 7 times with a remainder of 320.
Write down 7 as next digit of the result. 
Result so far: 28805.2687
If we take 4480 away from 4800, we end up 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.

Moving on to step 13:
If we divide 3200 by 640, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 28805.26875
If we take 3200 away from 3200, 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.

Advancing to step 14:
The number 640 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 28805.26875
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 15:
640 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 28805.26875
If we subtract 0 from 0, we get 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 final outcome is 28805.26875, with a leftover of 0.0.