1670762 divided by 645 
Let's see how many times 645 fits into 1670762.

Step 1:
The number 645 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 645

On to step 2:
When dividing 16 by 645, we get 0 with a remainder of 16.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 16 after subtracting 0 from 16.
Grab the next digit (7) from the dividend, add it to 16, then carry on: 167 / 645

Step 3:
The number 645 fits into 167 0 times, leaving a remainder of 167.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 167, we get 167.
Grab the next digit (0) from the dividend, add it to 167, then carry on: 1670 / 645

On to step 4:
When dividing 1670 by 645, we get 2 with a remainder of 380.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 1290 from 1670 leaves us with 380.
Bring next digit (7) of the dividend behind the 380 and repeat the process: 3807 / 645

Going ahead to step 5:
If we divide 3807 by 645, we get 5 and a remainder of 582.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Subtracting 3225 from 3807 leaves us with 582.
Bring next digit (6) of the dividend behind the 582 and repeat the process: 5826 / 645

Going ahead to step 6:
If we divide 5826 by 645, we get 9 and a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 259.0
Subtract 5805 from 5826 to get 21.
Grab the next digit (2) from the dividend, add it to 21, then carry on: 212 / 645

Advancing to step 7:
212 divided by 645 is 0 with a remainder of 212.
The next digit of our result is 0. 
Result so far: 2590.0
Deduct 0 from 212 and we're left with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Step 8:
The number 645 fits into 2120 3 times, leaving a remainder of 185.
Put 3 as the next digit of the answer. 
Result so far: 2590.3
Subtracting 1935 from 2120 leaves us with 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Step 9:
When dividing 1850 by 645, we get 2 with a remainder of 560.
Use 2 as the next digit of our solution. 
Result so far: 2590.32
If we take 1290 away from 1850, we end up with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Going ahead to step 10:
645 can be fit into 5600 8 times, resulting in a remainder of 440.
Put 8 as the next digit of the answer. 
Result so far: 2590.328
Subtracting 5160 from 5600 leaves us with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Going ahead to step 11:
When dividing 4400 by 645, we get 6 with a remainder of 530.
Record the quotient 6 as the next digit in the result. 
Result so far: 2590.3286
Subtracting 3870 from 4400 leaves us with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Going ahead to step 12:
5300 divided by 645 is 8 with a remainder of 140.
Write down 8 as next digit of the result. 
Result so far: 2590.32868
Deduct 5160 from 5300 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 13:
1400 divided by 645 is 2 with a remainder of 110.
Record the quotient 2 as the next digit in the result. 
Result so far: 2590.328682
Subtract 1290 from 1400 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Let's proceed to step 14:
If we divide 1100 by 645, we get 1 and a remainder of 455.
Use 1 as the next digit of our solution. 
Result so far: 2590.3286821
Subtract 645 from 1100 to get 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Step 15:
If we divide 4550 by 645, we get 7 and a remainder of 35.
Write down 7 as next digit of the result. 
Result so far: 2590.32868217
Deduct 4515 from 4550 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The final result is 2590.32868217 with a remainder of 3.5e-08.