57946562 ÷ 840 
We want to divide 57946562 by 840.

Step 1:
840 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 840

Step 2:
The number 840 fits into 57 0 times, leaving a remainder of 57.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 57, we end up with 57.
Bring next digit (9) of the dividend behind the 57 and repeat the process: 579 / 840

Going ahead to step 3:
840 can be fit into 579 0 times, resulting in a remainder of 579.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 579, we end up with 579.
Grab the next digit (4) from the dividend, add it to 579, then carry on: 5794 / 840

Advancing to step 4:
The number 840 fits into 5794 6 times, leaving a remainder of 754.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 5040 from 5794, we get 754.
Take the next digit (6) from the dividend and append it to 754, then repeat: 7546 / 840

Moving on to step 5:
The number 840 fits into 7546 8 times, leaving a remainder of 826.
Use 8 as the next digit of our solution. 
Result so far: 68.0
Deduct 6720 from 7546 and we're left with 826.
Include the next digit (5) from the dividend after 826, then repeat: 8265 / 840

Going ahead to step 6:
When dividing 8265 by 840, we get 9 with a remainder of 705.
The next digit of our result is 9. 
Result so far: 689.0
Subtract 7560 from 8265 to get 705.
Append the next digit (6) from the dividend to 705 and continue with: 7056 / 840

Step 7:
840 can be fit into 7056 8 times, resulting in a remainder of 336.
The next digit of our result is 8. 
Result so far: 6898.0
If we subtract 6720 from 7056, we get 336.
Grab the next digit (2) from the dividend, add it to 336, then carry on: 3362 / 840

Let's proceed to step 8:
840 goes into 3362 4 times with a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 68984.0
Subtracting 3360 from 3362 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 9:
840 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 68984.0
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
The number 840 fits into 200 0 times, leaving a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 68984.0
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 68984.0, with a leftover of 0.2.