We look at the division of 3443221 by 640 
Let's see how many times 640 fits into 3443221.

Moving on to step 1:
When dividing 3 by 640, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 640

Going ahead to step 2:
640 goes into 34 0 times with a remainder of 34.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 34, we get 34.
Fetch the next digit (4) from the dividend, attach it to 34 and continue: 344 / 640

Let's proceed to step 3:
344 divided by 640 is 0 with a remainder of 344.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 344 to get 344.
Bring next digit (3) of the dividend behind the 344 and repeat the process: 3443 / 640

Advancing to step 4:
3443 divided by 640 is 5 with a remainder of 243.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we take 3200 away from 3443, we end up with 243.
Grab the next digit (2) from the dividend, add it to 243, then carry on: 2432 / 640

Advancing to step 5:
The number 640 fits into 2432 3 times, leaving a remainder of 512.
Use 3 as the next digit of our solution. 
Result so far: 53.0
Subtracting 1920 from 2432 leaves us with 512.
Fetch the next digit (2) from the dividend, attach it to 512 and continue: 5122 / 640

Step 6:
The number 640 fits into 5122 8 times, leaving a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 538.0
If we take 5120 away from 5122, we end up with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 640

Let's proceed to step 7:
640 goes into 21 0 times with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 5380.0
Subtract 0 from 21 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 8:
When dividing 210 by 640, we get 0 with a remainder of 210.
The next digit of our result is 0. 
Result so far: 5380.0
The remainder is 210 after subtracting 0 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 9:
640 can be fit into 2100 3 times, resulting in a remainder of 180.
Use 3 as the next digit of our solution. 
Result so far: 5380.03
The remainder is 180 after subtracting 1920 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 10:
1800 divided by 640 is 2 with a remainder of 520.
The number 2 becomes the next digit in our result. 
Result so far: 5380.032
Subtracting 1280 from 1800 leaves us with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Moving on to step 11:
5200 divided by 640 is 8 with a remainder of 80.
Write down 8 as next digit of the result. 
Result so far: 5380.0328
If we subtract 5120 from 5200, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 12:
If we divide 800 by 640, we get 1 and a remainder of 160.
The number 1 becomes the next digit in our result. 
Result so far: 5380.03281
The remainder is 160 after subtracting 640 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 13:
When dividing 1600 by 640, we get 2 with a remainder of 320.
Write down 2 as next digit of the result. 
Result so far: 5380.032812
Deduct 1280 from 1600 and we're left 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.

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: 5380.0328125
If we subtract 3200 from 3200, 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.

Moving on to step 15:
If we divide 0 by 640, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5380.0328125
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 5380.0328125, with a leftover of 0.0.