We divide 643440 by 69
Our goal is to divide 643440 by 69.

Going ahead to step 1:
If we divide 6 by 69, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 69

Step 2:
69 can be fit into 64 0 times, resulting in a remainder of 64.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Include the next digit (3) from the dividend after 64, then repeat: 643 / 69

Going ahead to step 3:
When dividing 643 by 69, we get 9 with a remainder of 22.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we take 621 away from 643, we end up with 22.
Include the next digit (4) from the dividend after 22, then repeat: 224 / 69

Let's proceed to step 4:
When dividing 224 by 69, we get 3 with a remainder of 17.
The next digit of our result is 3. 
Result so far: 93.0
Subtract 207 from 224 to get 17.
Grab the next digit (4) from the dividend, add it to 17, then carry on: 174 / 69

Going ahead to step 5:
If we divide 174 by 69, we get 2 and a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 932.0
If we take 138 away from 174, we end up with 36.
Append the next digit (0) from the dividend to 36 and continue with: 360 / 69

Advancing to step 6:
360 divided by 69 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 9325.0
Subtract 345 from 360 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
69 can be fit into 150 2 times, resulting in a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 9325.2
If we subtract 138 from 150, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 8:
69 can be fit into 120 1 times, resulting in a remainder of 51.
The number 1 becomes the next digit in our result. 
Result so far: 9325.21
Subtract 69 from 120 to get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 9:
The number 69 fits into 510 7 times, leaving a remainder of 27.
Use 7 as the next digit of our solution. 
Result so far: 9325.217
Deduct 483 from 510 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 10:
270 divided by 69 is 3 with a remainder of 63.
Put 3 as the next digit of the answer. 
Result so far: 9325.2173
Subtract 207 from 270 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 11:
69 can be fit into 630 9 times, resulting in a remainder of 9.
The next digit of our result is 9. 
Result so far: 9325.21739
Subtract 621 from 630 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 12:
69 can be fit into 90 1 times, resulting in a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 9325.217391
Subtract 69 from 90 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.

Let's proceed to step 13:
69 can be fit into 210 3 times, resulting in a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 9325.2173913
If we subtract 207 from 210, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 14:
When dividing 30 by 69, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 9325.2173913
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 9325.2173913 with a remainder of 3e-08.