1666034 divided by 840 
We want to figure out the number of times 1666034 can be divided by 840.

On to step 1:
When dividing 1 by 840, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 840

Advancing to step 2:
When dividing 16 by 840, we get 0 with a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Bring next digit (6) of the dividend behind the 16 and repeat the process: 166 / 840

Moving on to step 3:
840 can be fit into 166 0 times, resulting in a remainder of 166.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 166 after subtracting 0 from 166.
Append the next digit (6) from the dividend to 166 and continue with: 1666 / 840

Going ahead to step 4:
When dividing 1666 by 840, we get 1 with a remainder of 826.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 826 after subtracting 840 from 1666.
Grab the next digit (0) from the dividend, add it to 826, then carry on: 8260 / 840

Moving on to step 5:
840 goes into 8260 9 times with a remainder of 700.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Deduct 7560 from 8260 and we're left with 700.
Bring next digit (3) of the dividend behind the 700 and repeat the process: 7003 / 840

Let's proceed to step 6:
840 can be fit into 7003 8 times, resulting in a remainder of 283.
The number 8 becomes the next digit in our result. 
Result so far: 198.0
The remainder is 283 after subtracting 6720 from 7003.
Include the next digit (4) from the dividend after 283, then repeat: 2834 / 840

Going ahead to step 7:
When dividing 2834 by 840, we get 3 with a remainder of 314.
Record the quotient 3 as the next digit in the result. 
Result so far: 1983.0
Deduct 2520 from 2834 and we're left with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Moving on to step 8:
840 goes into 3140 3 times with a remainder of 620.
The next digit of our result is 3. 
Result so far: 1983.3
If we take 2520 away from 3140, we end up with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 9:
6200 divided by 840 is 7 with a remainder of 320.
Write down 7 as next digit of the result. 
Result so far: 1983.37
The remainder is 320 after subtracting 5880 from 6200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 10:
840 can be fit into 3200 3 times, resulting in a remainder of 680.
Put 3 as the next digit of the answer. 
Result so far: 1983.373
Deduct 2520 from 3200 and we're left with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Step 11:
When dividing 6800 by 840, we get 8 with a remainder of 80.
Put 8 as the next digit of the answer. 
Result so far: 1983.3738
If we subtract 6720 from 6800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 12:
840 goes into 800 0 times with a remainder of 800.
The number 0 becomes the next digit in our result. 
Result so far: 1983.3738
The remainder is 800 after subtracting 0 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Going ahead to step 13:
8000 divided by 840 is 9 with a remainder of 440.
Record the quotient 9 as the next digit in the result. 
Result so far: 1983.373809
The remainder is 440 after subtracting 7560 from 8000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 14:
840 goes into 4400 5 times with a remainder of 200.
Write down 5 as next digit of the result. 
Result so far: 1983.3738095
If we take 4200 away from 4400, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 15:
If we divide 2000 by 840, we get 2 and a remainder of 320.
Put 2 as the next digit of the answer. 
Result so far: 1983.37380952
The remainder is 320 after subtracting 1680 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

The final result is 1983.37380952 with a remainder of 3.2e-07.