2173430 divided by 849 
Let's see how many times 849 fits into 2173430.

Going ahead to step 1:
849 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 849

On to step 2:
849 goes into 21 0 times with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Bring next digit (7) of the dividend behind the 21 and repeat the process: 217 / 849

Going ahead to step 3:
When dividing 217 by 849, we get 0 with a remainder of 217.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 217 and we're left with 217.
Grab the next digit (3) from the dividend, add it to 217, then carry on: 2173 / 849

Going ahead to step 4:
849 can be fit into 2173 2 times, resulting in a remainder of 475.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 1698 from 2173 leaves us with 475.
Grab the next digit (4) from the dividend, add it to 475, then carry on: 4754 / 849

Step 5:
4754 divided by 849 is 5 with a remainder of 509.
Use 5 as the next digit of our solution. 
Result so far: 25.0
Deduct 4245 from 4754 and we're left with 509.
Append the next digit (3) from the dividend to 509 and continue with: 5093 / 849

Moving on to step 6:
If we divide 5093 by 849, we get 5 and a remainder of 848.
The number 5 becomes the next digit in our result. 
Result so far: 255.0
Subtracting 4245 from 5093 leaves us with 848.
Bring next digit (0) of the dividend behind the 848 and repeat the process: 8480 / 849

Advancing to step 7:
If we divide 8480 by 849, we get 9 and a remainder of 839.
Record the quotient 9 as the next digit in the result. 
Result so far: 2559.0
If we subtract 7641 from 8480, we get 839.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8390, and continue the process.

Advancing to step 8:
When dividing 8390 by 849, we get 9 with a remainder of 749.
Use 9 as the next digit of our solution. 
Result so far: 2559.9
Subtracting 7641 from 8390 leaves us with 749.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7490, and continue the process.

Let's proceed to step 9:
If we divide 7490 by 849, we get 8 and a remainder of 698.
Use 8 as the next digit of our solution. 
Result so far: 2559.98
Subtracting 6792 from 7490 leaves us with 698.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6980, and continue the process.

Step 10:
The number 849 fits into 6980 8 times, leaving a remainder of 188.
Put 8 as the next digit of the answer. 
Result so far: 2559.988
Subtracting 6792 from 6980 leaves us with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

The final outcome is 2559.988, with a leftover of 0.0188.