73354563 ÷ 870 
We want to figure out the number of times 73354563 can be divided by 870.

Moving on to step 1:
870 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 870

Let's proceed to step 2:
If we divide 73 by 870, we get 0 and a remainder of 73.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 73 after subtracting 0 from 73.
Take the next digit (3) from the dividend and append it to 73, then repeat: 733 / 870

On to step 3:
733 divided by 870 is 0 with a remainder of 733.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 733 to get 733.
Take the next digit (5) from the dividend and append it to 733, then repeat: 7335 / 870

Let's proceed to step 4:
If we divide 7335 by 870, we get 8 and a remainder of 375.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 6960 from 7335 to get 375.
Grab the next digit (4) from the dividend, add it to 375, then carry on: 3754 / 870

Let's proceed to step 5:
3754 divided by 870 is 4 with a remainder of 274.
Put 4 as the next digit of the answer. 
Result so far: 84.0
If we subtract 3480 from 3754, we get 274.
Fetch the next digit (5) from the dividend, attach it to 274 and continue: 2745 / 870

On to step 6:
The number 870 fits into 2745 3 times, leaving a remainder of 135.
Use 3 as the next digit of our solution. 
Result so far: 843.0
If we subtract 2610 from 2745, we get 135.
Fetch the next digit (6) from the dividend, attach it to 135 and continue: 1356 / 870

On to step 7:
870 goes into 1356 1 times with a remainder of 486.
The next digit of our result is 1. 
Result so far: 8431.0
Subtracting 870 from 1356 leaves us with 486.
Fetch the next digit (3) from the dividend, attach it to 486 and continue: 4863 / 870

Advancing to step 8:
When dividing 4863 by 870, we get 5 with a remainder of 513.
The number 5 becomes the next digit in our result. 
Result so far: 84315.0
Deduct 4350 from 4863 and we're left with 513.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5130, and continue the process.

Moving on to step 9:
870 can be fit into 5130 5 times, resulting in a remainder of 780.
Use 5 as the next digit of our solution. 
Result so far: 84315.5
Deduct 4350 from 5130 and we're left with 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7800, and continue the process.

Let's proceed to step 10:
If we divide 7800 by 870, we get 8 and a remainder of 840.
Put 8 as the next digit of the answer. 
Result so far: 84315.58
Subtract 6960 from 7800 to get 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

Advancing to step 11:
If we divide 8400 by 870, we get 9 and a remainder of 570.
Write down 9 as next digit of the result. 
Result so far: 84315.589
If we take 7830 away from 8400, we end up with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Going ahead to step 12:
870 goes into 5700 6 times with a remainder of 480.
Use 6 as the next digit of our solution. 
Result so far: 84315.5896
Deduct 5220 from 5700 and we're left with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Moving on to step 13:
870 goes into 4800 5 times with a remainder of 450.
The next digit of our result is 5. 
Result so far: 84315.58965
If we take 4350 away from 4800, we end up with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Advancing to step 14:
If we divide 4500 by 870, we get 5 and a remainder of 150.
The next digit of our result is 5. 
Result so far: 84315.589655
Deduct 4350 from 4500 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

In conclusion, the division gives 84315.589655 with a balance of 1.5e-05.