68934969 ÷ 645 
We want to divide 68934969 by 645.

Let's proceed to step 1:
645 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 645

Advancing to step 2:
If we divide 68 by 645, we get 0 and a remainder of 68.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 68 after subtracting 0 from 68.
Take the next digit (9) from the dividend and append it to 68, then repeat: 689 / 645

Moving on to step 3:
When dividing 689 by 645, we get 1 with a remainder of 44.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 645 from 689 leaves us with 44.
Include the next digit (3) from the dividend after 44, then repeat: 443 / 645

Step 4:
645 goes into 443 0 times with a remainder of 443.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we subtract 0 from 443, we get 443.
Bring next digit (4) of the dividend behind the 443 and repeat the process: 4434 / 645

Going ahead to step 5:
645 goes into 4434 6 times with a remainder of 564.
Put 6 as the next digit of the answer. 
Result so far: 106.0
Deduct 3870 from 4434 and we're left with 564.
Include the next digit (9) from the dividend after 564, then repeat: 5649 / 645

Step 6:
5649 divided by 645 is 8 with a remainder of 489.
Write down 8 as next digit of the result. 
Result so far: 1068.0
If we take 5160 away from 5649, we end up with 489.
Append the next digit (6) from the dividend to 489 and continue with: 4896 / 645

On to step 7:
When dividing 4896 by 645, we get 7 with a remainder of 381.
Write down 7 as next digit of the result. 
Result so far: 10687.0
If we subtract 4515 from 4896, we get 381.
Take the next digit (9) from the dividend and append it to 381, then repeat: 3819 / 645

On to step 8:
The number 645 fits into 3819 5 times, leaving a remainder of 594.
The number 5 becomes the next digit in our result. 
Result so far: 106875.0
The remainder is 594 after subtracting 3225 from 3819.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5940, and continue the process.

Moving on to step 9:
When dividing 5940 by 645, we get 9 with a remainder of 135.
Put 9 as the next digit of the answer. 
Result so far: 106875.9
If we subtract 5805 from 5940, we get 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Advancing to step 10:
If we divide 1350 by 645, we get 2 and a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 106875.92
Deduct 1290 from 1350 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 11:
The number 645 fits into 600 0 times, leaving a remainder of 600.
Use 0 as the next digit of our solution. 
Result so far: 106875.92
If we subtract 0 from 600, we get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Going ahead to step 12:
645 goes into 6000 9 times with a remainder of 195.
Write down 9 as next digit of the result. 
Result so far: 106875.9209
The remainder is 195 after subtracting 5805 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Moving on to step 13:
If we divide 1950 by 645, we get 3 and a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 106875.92093
Subtracting 1935 from 1950 leaves us with 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 14:
645 goes into 150 0 times with a remainder of 150.
Put 0 as the next digit of the answer. 
Result so far: 106875.92093
If we take 0 away from 150, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 15:
645 can be fit into 1500 2 times, resulting in a remainder of 210.
Put 2 as the next digit of the answer. 
Result so far: 106875.9209302
Subtracting 1290 from 1500 leaves us with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

On to step 16:
2100 divided by 645 is 3 with a remainder of 165.
The next digit of our result is 3. 
Result so far: 106875.92093023
Subtract 1935 from 2100 to get 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

The final result is 106875.92093023 with a remainder of 1.65e-07.