We're dividing 2370833 by 645 
We're looking to find how many times 645 goes into 2370833.

On to step 1:
The number 645 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 645

Advancing to step 2:
The number 645 fits into 23 0 times, leaving a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 23 to get 23.
Append the next digit (7) from the dividend to 23 and continue with: 237 / 645

Going ahead to step 3:
237 divided by 645 is 0 with a remainder of 237.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 237, we end up with 237.
Grab the next digit (0) from the dividend, add it to 237, then carry on: 2370 / 645

On to step 4:
The number 645 fits into 2370 3 times, leaving a remainder of 435.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 1935 from 2370 to get 435.
Grab the next digit (8) from the dividend, add it to 435, then carry on: 4358 / 645

Step 5:
4358 divided by 645 is 6 with a remainder of 488.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
If we subtract 3870 from 4358, we get 488.
Take the next digit (3) from the dividend and append it to 488, then repeat: 4883 / 645

On to step 6:
4883 divided by 645 is 7 with a remainder of 368.
Use 7 as the next digit of our solution. 
Result so far: 367.0
Subtract 4515 from 4883 to get 368.
Bring next digit (3) of the dividend behind the 368 and repeat the process: 3683 / 645

On to step 7:
The number 645 fits into 3683 5 times, leaving a remainder of 458.
Write down 5 as next digit of the result. 
Result so far: 3675.0
If we take 3225 away from 3683, we end up with 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Going ahead to step 8:
The number 645 fits into 4580 7 times, leaving a remainder of 65.
Record the quotient 7 as the next digit in the result. 
Result so far: 3675.7
If we subtract 4515 from 4580, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 9:
645 can be fit into 650 1 times, resulting in a remainder of 5.
The next digit of our result is 1. 
Result so far: 3675.71
Deduct 645 from 650 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 10:
When dividing 50 by 645, we get 0 with a remainder of 50.
The next digit of our result is 0. 
Result so far: 3675.71
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 11:
If we divide 500 by 645, we get 0 and a remainder of 500.
Put 0 as the next digit of the answer. 
Result so far: 3675.71
Deduct 0 from 500 and we're left with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The final result is 3675.71 with a remainder of 0.005.