We divide 66390722 by 840
Let's see how many times 840 fits into 66390722.

Advancing to step 1:
840 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 840

Advancing to step 2:
The number 840 fits into 66 0 times, leaving a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Fetch the next digit (3) from the dividend, attach it to 66 and continue: 663 / 840

Moving on to step 3:
When dividing 663 by 840, we get 0 with a remainder of 663.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 663 leaves us with 663.
Take the next digit (9) from the dividend and append it to 663, then repeat: 6639 / 840

Let's proceed to step 4:
6639 divided by 840 is 7 with a remainder of 759.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 5880 away from 6639, we end up with 759.
Bring next digit (0) of the dividend behind the 759 and repeat the process: 7590 / 840

Let's proceed to step 5:
7590 divided by 840 is 9 with a remainder of 30.
The number 9 becomes the next digit in our result. 
Result so far: 79.0
The remainder is 30 after subtracting 7560 from 7590.
Fetch the next digit (7) from the dividend, attach it to 30 and continue: 307 / 840

Going ahead to step 6:
307 divided by 840 is 0 with a remainder of 307.
Write down 0 as next digit of the result. 
Result so far: 790.0
The remainder is 307 after subtracting 0 from 307.
Grab the next digit (2) from the dividend, add it to 307, then carry on: 3072 / 840

Going ahead to step 7:
When dividing 3072 by 840, we get 3 with a remainder of 552.
Use 3 as the next digit of our solution. 
Result so far: 7903.0
The remainder is 552 after subtracting 2520 from 3072.
Include the next digit (2) from the dividend after 552, then repeat: 5522 / 840

Step 8:
The number 840 fits into 5522 6 times, leaving a remainder of 482.
Use 6 as the next digit of our solution. 
Result so far: 79036.0
If we subtract 5040 from 5522, we get 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

Advancing to step 9:
840 goes into 4820 5 times with a remainder of 620.
The next digit of our result is 5. 
Result so far: 79036.5
The remainder is 620 after subtracting 4200 from 4820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Advancing to step 10:
840 can be fit into 6200 7 times, resulting in a remainder of 320.
The number 7 becomes the next digit in our result. 
Result so far: 79036.57
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.

Going ahead to step 11:
The number 840 fits into 3200 3 times, leaving a remainder of 680.
Use 3 as the next digit of our solution. 
Result so far: 79036.573
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.

Advancing to step 12:
840 can be fit into 6800 8 times, resulting in a remainder of 80.
Put 8 as the next digit of the answer. 
Result so far: 79036.5738
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.

Advancing to step 13:
840 goes into 800 0 times with a remainder of 800.
Record the quotient 0 as the next digit in the result. 
Result so far: 79036.5738
Subtracting 0 from 800 leaves us with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Advancing to step 14:
840 goes into 8000 9 times with a remainder of 440.
Put 9 as the next digit of the answer. 
Result so far: 79036.573809
If we subtract 7560 from 8000, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Advancing to step 15:
840 goes into 4400 5 times with a remainder of 200.
Write down 5 as next digit of the result. 
Result so far: 79036.5738095
Deduct 4200 from 4400 and we're left 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.

Moving on to step 16:
2000 divided by 840 is 2 with a remainder of 320.
Write down 2 as next digit of the result. 
Result so far: 79036.57380952
Subtracting 1680 from 2000 leaves us with 320.
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 outcome is 79036.57380952, with a leftover of 3.2e-07.