We look at the division of 53525565 by 840 
We're looking to find how many times 840 goes into 53525565.

Step 1:
The number 840 fits into 5 0 times, leaving a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 840

On to step 2:
53 divided by 840 is 0 with a remainder of 53.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Fetch the next digit (5) from the dividend, attach it to 53 and continue: 535 / 840

Step 3:
840 can be fit into 535 0 times, resulting in a remainder of 535.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 535, we get 535.
Take the next digit (2) from the dividend and append it to 535, then repeat: 5352 / 840

Step 4:
5352 divided by 840 is 6 with a remainder of 312.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 5040 from 5352 leaves us with 312.
Take the next digit (5) from the dividend and append it to 312, then repeat: 3125 / 840

On to step 5:
The number 840 fits into 3125 3 times, leaving a remainder of 605.
Put 3 as the next digit of the answer. 
Result so far: 63.0
If we take 2520 away from 3125, we end up with 605.
Include the next digit (5) from the dividend after 605, then repeat: 6055 / 840

Moving on to step 6:
If we divide 6055 by 840, we get 7 and a remainder of 175.
Put 7 as the next digit of the answer. 
Result so far: 637.0
The remainder is 175 after subtracting 5880 from 6055.
Include the next digit (6) from the dividend after 175, then repeat: 1756 / 840

Advancing to step 7:
840 can be fit into 1756 2 times, resulting in a remainder of 76.
Record the quotient 2 as the next digit in the result. 
Result so far: 6372.0
Deduct 1680 from 1756 and we're left with 76.
Include the next digit (5) from the dividend after 76, then repeat: 765 / 840

Let's proceed to step 8:
The number 840 fits into 765 0 times, leaving a remainder of 765.
Write down 0 as next digit of the result. 
Result so far: 63720.0
Subtract 0 from 765 to get 765.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7650, and continue the process.

Advancing to step 9:
If we divide 7650 by 840, we get 9 and a remainder of 90.
The number 9 becomes the next digit in our result. 
Result so far: 63720.9
Subtracting 7560 from 7650 leaves us with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 10:
When dividing 900 by 840, we get 1 with a remainder of 60.
The number 1 becomes the next digit in our result. 
Result so far: 63720.91
If we subtract 840 from 900, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 11:
If we divide 600 by 840, we get 0 and a remainder of 600.
Use 0 as the next digit of our solution. 
Result so far: 63720.91
Subtract 0 from 600 to get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Step 12:
When dividing 6000 by 840, we get 7 with a remainder of 120.
Put 7 as the next digit of the answer. 
Result so far: 63720.9107
If we take 5880 away from 6000, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 13:
840 can be fit into 1200 1 times, resulting in a remainder of 360.
The next digit of our result is 1. 
Result so far: 63720.91071
The remainder is 360 after subtracting 840 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 14:
840 can be fit into 3600 4 times, resulting in a remainder of 240.
Write down 4 as next digit of the result. 
Result so far: 63720.910714
Subtracting 3360 from 3600 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 15:
The number 840 fits into 2400 2 times, leaving a remainder of 720.
The number 2 becomes the next digit in our result. 
Result so far: 63720.9107142
Subtract 1680 from 2400 to get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Advancing to step 16:
If we divide 7200 by 840, we get 8 and a remainder of 480.
Write down 8 as next digit of the result. 
Result so far: 63720.91071428
The remainder is 480 after subtracting 6720 from 7200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

The final outcome is 63720.91071428, with a leftover of 4.8e-07.